Sonic Spinball (Game Gear)

Free-Movement Mode
In the Options menu, play sounds 0, 9, 0, 1, 6, 8 in the Sound Test (the screen will shake if you did it right). Start the game, then pause and press 2.

Build Date
1994-05-30 P.M. FINAL REV. 20 (K) A build date can be found in the ROM at. You can get it to display in the Options menu by playing sounds 0, 5, 0, 3, 6, 0 in the Sound Test.