Clear Isolated Island.
Clear Botanic Zone.
Clear Speed Slider.
Clear Amazing Arena.
Clear Marina Madness.
Clear Techno Tower.
Complete the game with bad ending.
Complete the game with good ending.
Collect 50 rings within any level.
Collect 100 rings within any level.
Collect 255 rings within any level.
Be onslaught by Metal Sonic.
Create sufficient debt to force a gameover.
Nothing is cooler than any sweet'n catchy music.
Complete every level of Botanic Zone in one session. (No Exit, No Save Switching)
Complete every level of Speed Slider in one session. (No Exit, No Save Switching)
Complete every level of Amazing Arena in one session. (No Exit, No Save Switching)
Complete every level of Techno Tower in one session. (No Exit, No Save Switching)
Complete every level of Marina Madness in one session. (No Exit, No Save Switching)