Collect 100 rings
Start Star Light Zone Act 1 with a sparkle...
Get an extra life on Green Hill Zone Act 2
Get to Labyrinth Zone (no stage select code)
Get to Marble Zone (no stage select code)
Get to Star Light Zone (no stage select code)
Get to Spring Yard Zone (no stage select code)
Get to Scrap Brain Zone (no stage select code)
Collect 20 rings
Reach the Final Zone (no stage select code)
Defeat Dr. Robotnik in the Final Zone (no stage select code)
Complete the game with all 6 Chaos Emeralds (no stage select code)
Score 100,000 points
Chain bounces and earn 10,000 per impact in Marble Zone Act 2
Finish a level with no time to spare
Collect 200 rings
Obtain Speed Shoes, a shield and invincibility all at once
Complete Green Hill Zone with no more than 1000 points
Collect 6 Chaos Emeralds! (no stage select code)
Reach 4 unique checkpoints in one level
Get 50 rings in the first 25 seconds of a level
Complete Act 1 of Marble Zone within 90 seconds
Catch your breath at the last possible second in Labyrinth Zone!
Complete the first act in Green Hill Zone