Complete Great Turquoise Zone.

Complete Sunset Park Zone.

Complete Meta Junglira Zone.

Complete Robotnik Winter Zone.

Complete Tidal Plant Zone.

Complete Atomic Destroyer Zone and finish the game!

Clear Act 1 of Great Turquoise Zone in 45 seconds or less without using the checkpoint or Special Stage to respawn.

Clear Act 1 of Sunset Park Zone in 40 seconds or less without using the checkpoint or Special Stage to respawn.

Clear Act 1 of Meta Junglira in 50 seconds or less without using the checkpoint or Special Stage to respawn.

Clear Act 1 of Robotnik Winter in 50 seconds or less without using the checkpoint or Special Stage to respawn.

Clear Act 1 of Tidal Plant in 2 minutes or less without using the checkpoint or Special Stage to respawn.

Clear Act 1 of Atomic Destroyer in 1 minute or less without using the checkpoint or Special Stage to respawn.

Defeat Tart Turtle without taking damage.

Defeat Marve Shupopolus-Gou without taking damage.

Defeat Wood Buttarundorf without taking damage.

Defeat Giga Thomas "Pen" without taking damage.

As Miles, defeat Knuckles the Echidna without losing your submarine.

Complete Atomic Destroyer Zone Act 3 without taking damage using no checkpoint to respawn.

Collect your first Chaos Emerald.

Collect all the Chaos Emeralds.

Beat the game as Miles.

Gain a life.

Gain 9 lives.

Collect 100 Rings in a single level.

Collect 200 Rings in a single level.

Get 100,000 Points.

Get 200,000 Points.

Beat the game without getting a game over.

Get the Miles plate as Sonic.

Get the Sonic plate playing as Miles.

Get a rings plate.

Get Knuckles as a plate.

Earn a continue.

Get a Chaos Emerald plate.

Get a Flicky for a plate.

Get the Pogo Spring.

Use Hyper Heli-Tails as Miles.

Get the Speed Shoes.

Become Invincible.

Use Swim Fin as Sonic.

Use the Snowboard as Sonic.

Use the Jet Turbo as Sonic.

Use the Submarine as Miles on either Act 1 or 2 of Tidal Plant.