Sonic 3D Blast Cheats
Press while playing the game to save an image of the current screen in the game directory.
Final Fight Zone
To unlock the final battle with Dr. Robotnik, you must collect all seven Chaos Emeralds.
Donkey Kong appearance
Go to some of the trees on the first level to see what appears to be Donkey Kong coming out of a tree.
There is a secret area in every level, Including the Ice Level and the Volcano level.