Get one Chaos Emerald.
Get 100 or more rings.
Beat Green Hill Zone Act 1 in under 35 seconds.
Clear the Green Hill Zone.
Beat the game in under 40 minutes.
Beat the game without dying.
Beat Marble Zone Act 1 in under 80 seconds.
Get to the Star Light Zone.
Get to the Spring Yard Zone.
Get to the Labyrinth Zone.
Get all the Chaos Emeralds.
Beat the game.