Green Hill Zone
Complete Green Hill Zone.
Marble Zone
Complete Marble Zone.
Spring Yard Zone
Complete Spring Yard Zone.
Labyrinth Zone
Complete Labyrinth Zone.
Star Light Zone
Complete Star Light Zone.
Scrap Brain Zone
Complete Scrap Brain Zone.
You made it?!
Defeat Dr. Robotnik in Final Zone and Beat the game.
Sonic got them All!
Collect the 6 Chaos Emeralds. Have fun with those special stages!
Super Victory
Beat the game with all Chaos Emeralds.
Collector
Collect 250 Rings.
Planning Ahead
Collect 15 Lives.
Fun is Infinite!
Beat the Game, from the beginning to the end, without dying once.
Gotta Go Fast
Beat an Act before the timer reaches 21s.
Overkill
Finish Green Hill Boss with Shield and Invincibility still active when screen moves again.
Pacifist
Complete Green Hill Zone Act 1, 2 and 3 without getting any in-level points and without dying.
Explorer
Complete Marble Zone Act 1, 2 and 3 while also finding each hidden 1-up.
Summon the Moving Platform
Complete Labyrinth Zone Act 1 via an alternate route.
Hidden
Complete Star Light Zone Act 1 by hitting the Goal Post from below.
Again?! No thanks!
Complete Scrap Brain Zone Act 3 via the shortest path.
Hill Greener
Defeat the boss of Green Hill Zone without losing rings or a shield.
Lava Leaper
Defeat the boss of Marble Zone without losing rings or a shield.
Spring Yard Spiker
Defeat the boss of Spring Yard Zone without losing rings or a shield.
A Maze Climber
On seeing Robotnik, climb to the top of Labyrinth without losing rings or a shield.
Star Light Striker
Defeat the boss of Star Light Zone without losing rings or a shield.
Piston The Egg Away
Complete Final Zone(when screen scrolls past boss) before the clock becomes 2m 01s.