Finished the '20 Rings' mission with a qualifying time.

Finished the '3 Red Points' mission with a qualifying time.

Finished the '50 Rings' mission with a qualifying time.

Finished the 'Touch Miles' mission with a qualifying time.

Finished the '5 Blue Points' mission with a qualifying time.

Finished the '7 Secret Cards' mission with a qualifying time.

Finished the '3 Balloons' mission with a qualifying time.

Finished the '100 Rings' mission with a qualifying time.

Finish the '20 Rings' mission in under 20 seconds.

Finish the '3 Red Points' mission in under 30 seconds.

Finish the '50 Rings' mission in under 35 seconds.

Finish the 'Touch Miles' mission in under 10 seconds.

Finish the '5 Blue Points' mission in under 45 seconds.

Finish the '7 Secret Cards' mission in under 55 seconds.

Finish the '3 Balloons' mission in under 50 seconds.

Finish the '100 Rings' mission in under 1 minute and 25 seconds.

Collected 100 rings, 3 red points, 5 blue points, 7 secret cards, and 3 balloons all at once.

[Sonic 1] Use the Spin Dash. Yes, it exists now.

[Sonic 1, Easy] In Green Hill Zone, become invincible within the first 5 seconds. Then finish the act staying invincible.

[Sonic 1, Easy] In Marble Zone, beat the stage with all 135 rings in your possession.

[Sonic 1, Easy] In Spring Yard Zone, fall from the floating box all the way to the ground.

[Sonic 1, Easy] In Labyrinth Zone, get the 1-up box on the bottom route and break the surface without air breaks in between.

[Sonic 1, Easy] In Star Light Zone, view the rotating stairs. Weep at how they shrunk, then spring on out of there.

[Sonic 1, Easy] In Scrap Brain Zone, find the bottom of the zig zag corridor that is missing its crushing machinery.

[Sonic 1, Easy] Defeat the Final Zone Boss & start chasing Robotnik within 35 seconds.

[Sonic 1, Easy] Beat the entire game in one go. No emeralds required.

[Sonic 1, Normal] Defeat the boss and hit the capsule at the end of Green Hill Zone.

[Sonic 1, Normal] Defeat the boss and hit the capsule at the end of Marble Zone.

[Sonic 1, Normal] Defeat the boss and hit the capsule at the end of Spring Yard Zone.

[Sonic 1, Normal] Hit the capsule at the end of Labyrinth Zone.

[Sonic 1, Normal] Defeat the boss and hit the capsule at the end of Star Light Zone.

[Sonic 1, Normal] Escape from the water trap in Scrap Brain Zone.

[Sonic 1, Normal] Defeat Dr. Robotnik in the Final Zone.

[Sonic 1, Normal] Collect your first chaos emerald.

[Sonic 1, Normal] Collect all of the chaos emeralds.

[Sonic 1, Normal] Beat the game with all six chaos emeralds.

[Sonic 1, Normal] Have a shield, super speed, and invincibility at the same time.

[Sonic 1, Normal] In one life, collect 35 rings in Green Hill Zone Act 1 in 30 seconds.

[Sonic 1, Normal] Defeat the Green Hill Zone boss without getting hit.

[Sonic 1, Normal] In Marble Zone Act 2, break all 17 blocks consecutively without stopping.

[Sonic 1, Normal] Defeat the Marble Zone boss without getting hit.

[Sonic 1, Normal] In Spring Yard Zone Act 2, take the upper exit.

[Sonic 1, Normal] Defeat the Spring Yard Zone boss without getting hit.

[Sonic 1, Normal] In Labyrinth Zone Act 1, bring 50 rings to the goal using the upper path.

[Sonic 1, Normal] Survive the Labyrinth Zone boss without getting hit or wet.

[Sonic 1, Normal] Clear Star Light Zone Act 1 using the lower goal post.

[Sonic 1, Normal] Defeat the Star Light Zone boss using ONLY the seesaws without getting hit.

[Sonic 1, Normal] In Scrap Brain Zone Act 2, take the secret teleporter path. 50 rings should get you in.

[Sonic 1, Normal] In Scrap Brain Zone Act 3, break open the sunken 1-up monitor.

[Sonic 1, Normal] Defeat the Final Zone boss without getting hit. Yes, rings were added. Doesn't matter.

[Sonic 1, Extra] Get all 6 chaos emeralds back to back via the Special Stage extra game.

[Sonic 1, Extra] Beat the best Time Attack time for Green Hill Zone Act 1.

[Sonic 1, Extra] Beat the best Time Attack time for Green Hill Zone Act 2.

[Sonic 1, Extra] Beat the best Time Attack time for Green Hill Zone Act 3.

[Sonic 1, Extra] Beat the best Time Attack time for Marble Zone Act 1.

[Sonic 1, Extra] Beat the best Time Attack time for Marble Zone Act 2.

[Sonic 1, Extra] Beat the best Time Attack time for Marble Zone Act 3.

[Sonic 1, Extra] Beat the best Time Attack time for Spring Yard Zone Act 1.

[Sonic 1, Extra] Beat the best Time Attack time for Spring Yard Zone Act 2.

[Sonic 1, Extra] Beat the best Time Attack time for Spring Yard Zone Act 3.

[Sonic 1, Extra] Beat the best Time Attack time for Labyrinth Zone Act 1.

[Sonic 1, Extra] Beat the best Time Attack time for Labyrinth Zone Act 2.

[Sonic 1, Extra] Beat the best Time Attack time for Labyrinth Zone Act 3.

[Sonic 1, Extra] Beat the best Time Attack time for Star Light Zone Act 1.

[Sonic 1, Extra] Beat the best Time Attack time for Star Light Zone Act 2.

[Sonic 1, Extra] Beat the best Time Attack time for Star Light Zone Act 3.

[Sonic 1, Extra] Beat the best Time Attack time for Scrap Brain Zone Act 1.

[Sonic 1, Extra] Beat the best Time Attack time for Scrap Brain Zone Act 2.

[Sonic 1, Extra] Beat the best Time Attack time for Scrap Brain Zone Act 3.

[Sonic 1, Extra] Beat the best Time Attack time for Final Zone.

[Sonic 3, Normal] Complete Angel Island Zone as Sonic (with or without Tails)

[Sonic 3, Normal] Complete Hydrocity Zone as Sonic (with or without Tails)

[Sonic 3, Normal] Complete Marble Garden Zone as Sonic (with or without Tails)

[Sonic 3, Normal] Complete Carnival Night Zone as Sonic (with or without Tails)

[Sonic 3, Normal] Complete Icecap Zone as Sonic (with or without Tails)

[Sonic 3, Normal] Beat the game as Sonic (with or without Tails)

[Sonic 3/S3&K, Normal] Earn a Perfect in special stage 1

[Sonic 3/S3&K, Normal] Earn a Perfect in special stage 2

[Sonic 3/S3&K, Normal] Earn a Perfect in special stage 3

[Sonic 3/S3&K, Normal] Earn a Perfect in special stage 4

[Sonic 3/S3&K, Normal] Earn a Perfect in special stage 5

[Sonic 3/S3&K, Normal] Earn a Perfect in special stage 6

[Sonic 3/S3&K, Normal] Earn a Perfect in special stage 7

[Sonic 3, Normal] Obtain all seven chaos emeralds

[Sonic 3, Easy] There's a missing set of submerged spikes somewhere in Angel Island Zone act 1. Walk where they should be

[Sonic 3, Easy] Find the red spring that replaced an underwater spinning pillar in Hydrocity Zone act 2

[Sonic 3, Easy] Locate where this spiked ball is supposed to be in Marble Garden Zone act 2 and touch where the post should be

[Sonic 3, Normal or Easy] While you no longer need to get past the barrel of doom, an extra life might be hiding as a reward for dealing with one underwater

[Sonic 3, Normal or Easy] ] In Icecap Zone act 2, a pit has been removed, but its replacement seems somewhat out of place

[Sonic 3, Easy] A Ribot and some spikes are missing somewhere in Launch Base Zone act 2 and has been replaced with a boost pad. Use the boost pad to trigger

[Sonic 3, Normal] Complete the secret eighth special stage from the level select menu

[Sonic 3, Extra] Clear Angel Island Zone act 1 in Time Attack in under 1:10

[Sonic 3, Extra] Clear Angel Island Zone act 2 in Time Attack in under 2:40

[Sonic 3, Extra] Clear Hydrocity Zone act 1 in Time Attack in under 2:40

[Sonic 3, Extra] Clear Hydrocity Zone act 2 in Time Attack in under 3:30

[Sonic 3, Extra] Clear Marble Garden Zone act 1 in Time Attack in under 3:40

[Sonic 3, Extra] Clear Marble Garden Zone act 2 in Time Attack in under 5:00

[Sonic 3, Extra] Clear Carnival Night Zone act 1 in Time Attack in under 2:30

[Sonic 3, Extra] Clear Carnival Night Zone act 2 in Time Attack in under 4:00

[Sonic 3, Extra] Clear Icecap Zone act 1 in Time Attack in under 3:30

[Sonic 3, Extra] Clear Icecap Zone act 2 in Time Attack in under 2:00

[Sonic 3, Extra] Clear Launch Base Zone act 1 in Time Attack in under 4:00

[Sonic 3, Extra] Clear Launch Base Zone act 2 in Time Attack in under 5:00

[Sonic 3, Extra] Earn a Perfect in all special stages in the Special Stage gauntlet

[Sonic 3, Extra] Clear the Special Stage gauntlet

[Sonic 3, Normal] Beat the boss of Angel Island Zone act 1 damageless, no shield or Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Angel Island Zone act 2 in under 8.7 seconds, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Hydrocity Zone act 1 without getting hit, no shields or Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Hydrocity Zone act 2 in under 18 seconds, no Super Sonic

[Sonic 3, Normal] Beat the boss of Marble Garden Zone act 1 without getting hit, no shields or Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Marble Garden act 2 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Carnival Night Zone act 1 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Carnival Night act 2 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Icecap Zone act 1 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Icecap act 2 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the boss of Launch Base Zone act 1 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the first two bosses of Launch Base act 2 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the final boss of Launch Base act 2 without getting hit, no Super Sonic (Level Select allowed)

[Sonic 3, Normal] Beat the game as Sonic (with or without Tails) with all chaos emeralds

[Sonic 2, Normal] Finish the Emerald Hill Zone

[Sonic 2, Normal] Finish the Chemical Plant Zone

[Sonic 2, Normal] Finish the Aquatic Ruin Zone

[Sonic 2, Normal] Finish the Casino Night Zone

[Sonic 2, Normal] Finish the Hill Top Zone

[Sonic 2, Normal] Finish the Mystic Cave Zone

[Sonic 2, Normal] Finish the Oil Ocean Zone

[Sonic 2, Normal] Finish the Metropolis Zone

[Sonic 2, Normal] Finish the Winged Fortress Zone

[Sonic 2, Normal] Finish the game as Sonic

[Sonic 2, Normal] Finish the game with all 7 emeralds

[Sonic 2, Normal] Finish the game as just Tails

[Sonic 2, Normal] Collect all 7 Emeralds

[Blue Spheres] Clear a blue sphere stage with difficulty 1.

[Blue Spheres] Clear a blue sphere stage with difficulty 2.

[Blue Spheres] Clear a blue sphere stage with difficulty 3.

[Blue Spheres] Clear a blue sphere stage with difficulty 4.

[Blue Spheres] Clear a blue sphere stage with difficulty 5.

[Blue Spheres] Clear a blue sphere stage with difficulty 6.

[Blue Spheres] Clear a blue sphere stage with difficulty 7.

[Blue Spheres] Clear a blue sphere stage with difficulty 8.

[Blue Spheres] Clear a blue sphere stage with difficulty 9.

[Blue Spheres] Clear a blue sphere stage with difficulty 10.

[Blue Spheres] Clear a blue sphere stage with difficulty 11.

[Blue Spheres] Clear a blue sphere stage with difficulty 12.

[Blue Spheres] Clear a blue sphere stage with difficulty MAX.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 1.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 2.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 3.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 4.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 5.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 6.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 7.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 8.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 9.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 10.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 11.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty 12.

[Blue Spheres] Get a perfect on a blue sphere stage with difficulty MAX.

[Blue Spheres] Clear a blue sphere stage and collect a green chaos emerald.

[Blue Spheres] Clear a blue sphere stage and collect a red chaos emerald.

[Blue Spheres] Clear a blue sphere stage and collect a pink chaos emerald.

[Blue Spheres] Clear a blue sphere stage and collect a blue chaos emerald.

[Blue Spheres] Clear a blue sphere stage and collect a gray chaos emerald.

[Blue Spheres] Clear a blue sphere stage and collect a cyan chaos emerald.

[Blue Spheres] Clear a blue sphere stage and collect a yellow chaos emerald.

[Blue Spheres] Win three special stages in a row (no changing the code in the middle).

[Blue Spheres] Win five special stages in a row (no changing the code in the middle).

[Blue Spheres] Win three special stages in a row with perfects (no changing the code in the middle).

[Blue Spheres] Win five special stages in a row with perfects (no changing the code in the middle).

[S3&K, Normal] Beat the game as Tails

[S3&K, Normal] Complete Angel Island Zone as Tails

[S3&K, Normal] Complete Hydrocity Zone as Tails

[S3&K, Normal] Complete Marble Garden Zone as Tails

[S3&K. Normal] Complete Carnival Night Zone as Tails

[S3&K, Normal] Complete Icecap Zone as Tails

[S3&K, Normal] Complete Angel Island Zone as Knuckles

[S3&K, Normal] Complete Hydrocity Zone as Knuckles

[S3&K, Normal] Complete Marble Garden Zone as Knuckles

[S3&K, Normal] Complete Carnival Night Zone as Knuckles

[S3&K, Normal] Complete Icecap Zone as Knuckles

[S3&K, Normal] Find and beat the boss of Carnival Night Zone act 2 as Knuckles

[S3&K, Normal] Complete Launch Base Zone as Tails

[S3&K, Normal] Complete Launch Base Zone as Knuckles

[S3&K, Normal] Complete Mushroom Hill Zone as Tails

[S3&K, Normal] Complete Mushroom Hill Zone as Knuckles

[S3&K, Normal] Complete Flying Battery Zone as Tails

[S3&K, Normal] Complete Flying Battery Zone as Knuckles

[S3&K, Normal] Complete Sandopolis Zone as Tails

[S3&K, Normal] Complete Sandopolis Zone as Knuckles

[S3&K, Normal] Complete Lava Reef Zone as Tails

[S3&K, Normal] Complete Lava Reef Zone as Knuckles

[S3&K, Normal] Complete Hidden Palace Zone as Tails

[S3&K, Normal] Complete Hidden Palace Zone as Knuckles

[S3&K, Normal] Complete Sky Sanctuary Zone as Tails

[S3&K, Normal] Beat the game as Knuckles

[S3&K, Normal] Obtain all chaos and super emeralds

[S3&K, Normal] In act 2 of Mushroom Hill Zone, find the hidden set of seven rings and two shield monitors

[S3&K, Normal] As Sonic (without Tails), obtain a Fire Shield in act 1 of Angel Island Zone and clear act 2 without losing it (no special/bonus stages)

[S3&K, Normal] Reach the boss of Hydrocity Zone act 1 without going in the water as Knuckles without dying, using super/hyper, or going into special/bonus stages

[S3&K, Normal] Break 20 monitors in Marble Garden Zone act 1 as Tails without dying, no special/bonus stages

[S3&K, Normal] After obtaining all 7 chaos emeralds, complete Icecap Zone act 1 as Tails with 219 or more rings without entering a bonus stage

[S3&K, Normal] Beat the boss of Launch Base Zone act 2 as Knuckles without getting hit, no Super/Hyper

[S3&K, Normal] As Tails, successfully fly from the first outside platforming section to the start of the next outside section by going under the level in act 1 of Flying Battery Zone

[S3&K, Normal] As Knuckles, reach the boss of Sandopolis Zone act 2 without turning on the lights, no Super/Hyper

[S3&K, Normal] Clear both acts of Lava Reef Zone as Tails without dying, using Fire Shields, using super, or going into special/bonus stages

[S3&K, Normal] Destroy all 10 monitors in Hidden Palace Zone as Tails

[S3&K, Normal] Have Knuckles perform a different animation near the start of Sky Sanctuary Zone

[S3&K, Normal] As Tails, clear Sky Sanctuary Zone while only fighting Mecha Sonic once without dying or bonus stages

[S3&K, Normal] Clear both acts of Death Egg Zone without dying, breaking any monitors, using super/hyper, or going into bonus stages

[S3&K] All challenges allow the use of level select, but not debug mode. Have fun!

[S&K, Extra] Clear the Special Stage gauntlet

[S&K, Extra] Earn a Perfect in all special stages in the Special Stage gauntlet

[S&K, Normal] Beat Mushroom Hill Zone as Sonic

[S&K, Normal] As Sonic, beat the boss of Mushroom Hill Zone act 1 damageless, no shield or Super Sonic (Level Select allowed)

[S&K, Normal] As Sonic, beat the boss of Mushroom Hill Zone act 2 damageless without a fire shield or Super Sonic (Level Select allowed)

[S&K, Easy] It's no fun having your speed stopped by something grabbing you. Launch yourself from a spring to where you would normally be caught by one of these in Mushroom Hill Zone act 1 (Level Select allowed)

[S&K, Normal] Beat Flying Battery Zone as Sonic

[S&K, Normal] As Sonic, beat the boss of Flying Battery Zone act 1 without getting hit, pressing left or right, or using Super Sonic (Level Select allowed)

[S&K, Normal] As Sonic, beat the boss of Flying Battery act 2 without getting hit, no Super Sonic (Level Select allowed)

[S&K, Easy] Remember all those spinning pillars in Flying Battery act 2? Find the one that no longer has any platforms to crush you (Level Select allowed)

[S&K, Normal] Beat Sandopolis Zone as Sonic

[S&K, Normal] As Sonic, beat the boss of Sandopolis Zone act 1 without getting hit or pressing a jump button more than one time (Level Select allowed)

[S&K, Normal] As Sonic, beat the boss of Sandopolis act 2 without getting hit, no Super Sonic (Level Select allowed)

[S&K, Easy] Two monitors were removed? Why not just make them easier to get? Go where the monitors used to be (Level Select allowed)

[S&K, Normal] Beat Lava Reef Zone as Sonic

[S&K, Normal] As Sonic, beat the boss of Lava Reef Zone act 1 without getting hit, no Super Sonic (Level Select allowed)

[S&K, Normal] As Sonic, beat the boss of Lava Reef act 2 without getting hit, no Super Sonic (Level Select allowed)

[S&K, Easy] A set of fifteen rings and a 1-up has somehow become harder to reach, so put your spindash jump and electric shield skills to the test (Level Select allowed)

[S&K, Normal] Beat Hidden Palace Zone as Sonic

[S&K, Normal] As Sonic, beat the boss of Hidden Palace Zone without getting hit, no Super Sonic (Level Select allowed)

[S&K, Normal] Beat Sky Sanctuary Zone as Sonic

[S&K, Normal] As Sonic, beat the first boss of Sky Sanctuary Zone without getting hit, no Super Sonic (Level Select allowed)

[S&K, Normal] As Sonic, beat the second boss of Sky Sanctuary Zone without getting hit, no Super Sonic (Level Select allowed)

[S&K, Normal] As Sonic, beat the third boss of Sky Sanctuary Zone without getting hit, no Super Sonic (Level Select allowed)

[S&K, Easy] Not only has a crumbling platform section been changed, some clouds were added as well! Use them to skip where the first boss is (Level Select allowed)

[S&K, Normal] Beat Death Egg Zone Zone as Sonic

[S&K, Normal] As Sonic, beat the boss of Death Egg Zone act 1 without getting hit, no Super Sonic (Level Select allowed)

[S&K, Normal] As Sonic, beat the first boss of Death Egg act 2 without getting hit, no Super Sonic (Level Select allowed)

[S&K, Normal] As Sonic, beat the second boss of Death Egg act 2 without getting hit, no Super Sonic (Level Select allowed)

[S&K, Easy] Who needs those long platforms that angle based on your position? Let's have rising stairs instead! Land on one of the sets of platforms with a spring (Level Select allowed)

[S&K, Normal] Beat the game as Sonic with all 7 chaos emeralds

[S&K/S3&K, Normal] Earn a Perfect in special stage 1 (Super Emerald 4 in S3&K)

[S&K/S3&K, Normal] Earn a Perfect in special stage 2 (Super Emerald 3 in S3&K)

[S&K/S3&K, Normal] Earn a Perfect in special stage 3 (Super Emerald 5 in S3&K)

[S&K/S3&K, Normal] Earn a Perfect in special stage 4 (Super Emerald 2 in S3&K)

[S&K/S3&K, Normal] Earn a Perfect in special stage 5 (Super Emerald 6 in S3&K)

[S&K/S3&K, Normal] Earn a Perfect in special stage 6 (Super Emerald 1 in S3&K)

[S&K/S3&K, Normal] Earn a Perfect in special stage 7 (Super Emerald 7 in S3&K)

[S&K, Normal] Obtain all seven chaos emeralds

[S&K, Extra] Clear Mushroom Hill Zone act 1 in Time Attack in under 2:00

[S&K, Extra] Clear Mushroom Hill Zone act 2 in Time Attack in under 2:20

[S&K, Extra] Clear Flying Battery Zone act 1 in Time Attack in under 3:30

[S&K, Extra] Clear Flying Battery Zone act 2 in Time Attack in under 4:40

[S&K, Extra] Clear Sandopolis Zone act 1 in Time Attack in under 3:50

[S&K, Extra] Clear Sandopolis Zone act 2 in Time Attack in under 5:30

[S&K, Extra] Clear Lava Reef Zone act 1 in Time Attack in under 4:30

[S&K, Extra] Clear Lava Reef Zone act 2 in Time Attack in under 4:00

[S&K, Extra] Clear Hidden Palace Zone in Time Attack in under 1:00

[S&K, Extra] Clear Sky Sanctuary Zone in Time Attack in under 4:00

[S&K, Extra] Clear Death Egg Zone act 1 in Time Attack in under 4:30

[S&K, Extra] Clear Death Egg Zone act 2 in Time Attack in under 5:00

[S&K, Extra] Clear Doomsday Zone in Time Attack in under 2:20

[Knuckles in Sonic 2, Normal] Finish the Emerald Hill Zone

[Knuckles in Sonic 2, Normal] Finish the Chemical Plant Zone

[Knuckles in Sonic 2, Normal] Finish the Aquatic Ruin Zone

[Knuckles in Sonic 2, Normal] Finish the Casino Night Zone

[Knuckles in Sonic 2, Normal] Finish the Hill Top Zone

[Knuckles in Sonic 2, Normal] Finish the Mystic Cave Zone

[Knuckles in Sonic 2, Normal] Finish the Oil Ocean Zone

[Knuckles in Sonic 2, Normal] Finish the Metropolis Zone

[Knuckles in Sonic 2, Normal] Finish the Winged Fortress Zone

[Knuckles in Sonic 2, Normal] Finish the game as Knuckles

[Knuckles in Sonic 2, Normal] Finish the game with all 7 emeralds

[Knuckles in Sonic 2, Normal] Collect all 7 Emeralds

[S2K, Extra] Clear Emerald Hill Zone act 1 in Time Attack in under 0:45

[S2K, Extra] Clear Emerald Hill Zone act 2 in Time Attack in under 1:00

[S2K, Extra] Clear Chemical Plant Zone act 1 in Time Attack in under 0:40

[S2K, Extra] Clear Chemical Plant Zone act 2 in Time Attack in under 0:45

[S2K, Extra] Clear Aquatic Ruin Zone act 1 in Time Attack in under 0:30

[S2K, Extra] Clear Aquatic Ruin Zone act 2 in Time Attack in under 1:00

[S2K, Extra] Clear Casino Night Zone act 1 in Time Attack in under 0:50

[S2K, Extra] Clear Casino Night Zone act 2 in Time Attack in under 2:00

[S2K, Extra] Clear Hill Top Zone act 1 in Time Attack in under 1:15

[S2K, Extra] Clear Hill Top Zone act 2 in Time Attack in under 1:30

[S2K, Extra] Clear Mystic Cave Zone act 1 in Time Attack in under 1:15

[S2K, Extra] Clear Mystic Cave Zone act 2 in Time Attack in under 1:10

[S2K, Extra] Clear Oil Ocean Zone act 1 in Time Attack in under 1:45

[S2K, Extra] Clear Oil Ocean Zone act 2 in Time Attack in under 1:30

[S2K, Extra] Clear Metropolis Zone act 1 in Time Attack in under 1:45

[S2K, Extra] Clear Metropolis Zone act 2 in Time Attack in under 2:10

[S2K, Extra] Clear Metropolis Zone act 3 in Time Attack in under 3:10

[S2K, Extra] Clear Wing Fortress Zone in Time Attack in under 2:30

[S2K, Extra] Clear Death Egg Zone in Time Attack in under 1:00

[Sonic 2, Extra] Clear Emerald Hill Zone act 1 in Time Attack in 0:25 or less

[Sonic 2, Extra] Clear Emerald Hill Zone act 2 in Time Attack in 1:00 or less

[Sonic 2, Extra] Clear Chemical Plant Zone act 1 in Time Attack in 0:35 or less

[Sonic 2, Extra] Clear Chemical Plant Zone act 2 in Time Attack in 1:00 or less

[Sonic 2, Extra] Clear Aquatic Ruin Zone act 1 in Time Attack in 0:35 or less

[Sonic 2, Extra] Clear Aquatic Ruin Zone act 2 in Time Attack in 1:15 or less

[Sonic 2, Extra] Clear Casino Night Zone act 1 in Time Attack in 0:55 or less

[Sonic 2, Extra] Clear Casino Night Zone act 2 in Time Attack in 2:00 or less

[Sonic 2, Extra] Clear Hill Top Zone act 1 in Time Attack in 1:30 or less

[Sonic 2, Extra] Clear Hill Top Zone act 2 in Time Attack in 1:30 or less

[Sonic 2, Extra] Clear Mystic Cave Zone act 2 in Time Attack in 1:10 or less

[Sonic 2, Extra] Clear Mystic Cave Zone act 1 in Time Attack in 1:10 or less

[Sonic 2, Extra] Clear Oil Ocean Zone act 1 in Time Attack in 1:05 or less

[Sonic 2, Extra] Clear Oil Ocean Zone act 2 in Time Attack in 1:20 or less

[Sonic 2, Extra] Clear Metropolis Zone act 1 in Time Attack in 1:45 or less

[Sonic 2, Extra] Clear Metropolis Zone act 2 in Time Attack in 2:00 or less

[Sonic 2, Extra] Clear Metropolis Zone act 3 in Time Attack in 2:35 or less

[Sonic 2, Extra] Clear Wing Fortress in Time Attack in 2:35 or less

[Sonic 2, Extra] Clear Death Egg in Time Attack in 1:00 or less

[Sonic 2 | S2K, Easy] Defeat Robotnik before he can turn right (Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik before he reaches the right side of the screen (Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik before he reaches the left side of the screen (Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik without taking damage and without jumping after damaging him (No SS, Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik without taking damage and without jumping after the boss music starts (No SS, Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik without taking damage or jumping and without letting him return to the ceiling (No SS, Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik without letting him escape back under the oil (No SS, Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik without taking damage (No SS, Level Select allowed)

[Sonic 2 | S2K, Normal] Defeat Robotnik without taking damage or touching the ground after damaging the boss (No SS, Level Select allowed)

[Sonic 2 | S2K, Normal] Finish Death Egg without taking damage (No SS, Level Select allowed)

[Sonic 2 | S2K, Easy] Find all 4 sets of disabled chemical ball shooters (Level Select allowed)

[Sonic 2 | S2K, Easy] Find all 4 new underwater safety springs in Aquatic Ruins (Level Select allowed)

[Sonic 2 | S2K, Easy] Find all 4 sets of missing spikes in Casino Night (Level Select allowed)

[Sonic 2 | S2K, Easy] Find all 4 sets new of safety platforms in Hill Top

[Sonic 2 | S2K, Easy] Find all 7 sets new of safety platforms or missing spikes in Mystic Cave

[Sonic 2 | S2K, Easy] Find 7 sets of changes in Oil Ocean

[Sonic 2 | S2K, Easy] Find 7 sets of changes in Metropolis

[Sonic 2 | S2K, Easy] Clear Death Egg in under 32 seconds

[Sonic 2 | S2K, Normal] Defeat Robotnik without taking damage or pressing left or right after damaging the boss (No SS, Level Select allowed)