Frogger: Advanced resolution
At the Frogger title screen, push Up(twice), Down(twice), Left, Right, Left, Right, B, A, Start for higher resolution graphics. You will hear a sound if the code has been entered correctly.
Gyruss: Advanced resolution
At the Gyruss title screen, push Up(twice), Down(twice), Left, Right, Left, Right, B, A, Start for higher resolution graphics. You will hear a sound if the code has been entered correctly.
Rush N' Attack: Extra lives
At the Rush N' Attack title screen, push Up(twice), Down(twice), Left, Right, Left, Right, B, A, Start. You will hear a sound if the code has been entered correctly.
Scramble: Advanced resolution
At the Scramble title screen, push Up(twice), Down(twice), Left, Right, Left, Right, B, A, Start for higher resolution graphics. You will hear a sound if the code has been entered correctly.
Time Pilot: Bonus level
At the Time Pilot title screen, push Up(twice), Down(twice), Left, Right, Left, Right, B, A, Start . A prehistoric level will appear during game play. You will hear a sound if the code has been entered correctly.
Yie-Ar Kung Fu: Bonus fighters
At the Yie-Ar Kung Fu title screen, push Up(twice), Down(twice), Left, Right, Left, Right, B, A, Start. You will hear a sound if the code has been entered correctly.The bonus fighters will be unlocked after a single player game, or may be immediately selected in versus mode.