- PC
Advanced resolution in Frogger
At the Frogger title screen, press Up2, Down2, Left, Right, Left, Right, B, A, Start for higher resolution graphics.
Advanced resolution in Gyruss
At the Gyruss title screen, press Up2, Down2, Left, Right, Left, Right, B, A, Start for higher resolution graphics.
Extra lives in Rush N' Attack
At the Rush N' Attack title screen, press Up2, Down2, Left, Right, Left, Right, B, A, Start.
Advanced resolution in Scramble
At the Scramble title screen, press Up2, Down2, Left, Right, Left, Right, B, A, Start for higher resolution graphics.
Bonus level in Time Pilot
At the Time Pilot title screen, press Up2, Down2, Left, Right, Left, Right, B, A, Start. A prehistoric level will appear during game play.
Bonus fighters in Yie-Ar Kung Fu
At the Yie-Ar Kung Fu title screen, press Up2, Down2, Left, Right, Left, Right, B, A, Start. The bonus fighters will be unlocked after a single player game, or may be immediately selected in versus mode.
