Collect all 7 Chaos Emeralds while in Mushroom Hill Zone
Hold 100 or more rings at once in The Doomsday Zone
Beat Mecha Sonic with Knuckles without taking damage
Beat Knuckles with Sonic without taking damage
Destroy 10 Monitors in Flying Battery Zone without death
Collect Fire, Thunder and Water shields
Reach Flying Battery Zone
Reach Sandopolis Zone
Reach Lava Reef Zone
Reach Sky Sanctuary Zone
Reach Death Egg Zone
Catch 50 Rings
Catch 100 Rings
Catch 200 Rings
Get Your First Chaos emerald
Get all Chaos Emeralds
Get 50 Rings and Transform into Super Sonic or Super Knuckles
Complete the Game with Knuckles
Complete the Game with Sonic
As Sonic, Complete Game with all Chaos emeralds