Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start at the Frogger title screen for higher resolution graphics.
Gyruss: Advanced Resolution
Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start at the Gyruss title screen for higher resolution graphics.
Rush'n Attack: Extra Lives
Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start at the Rush'n Attack title screen.
Scramble: Advanced Resolution
Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start at the Scramble title screen for higher resolution graphics.
Time Pilot: Bonus Level
Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start at the Time Pilot title screen. A prehistoric level will appear during gameplay.
Yie-Ar Kung Fu: Bonus Fighters
Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start at the Yie-Ar Kung Fu title screen. The bonus fighters will be unlocked after a single player game, or may be immediately selected in versus mode.
Frogger: Advanced Resolution...