Frogger:
Advanced resolution: Press Up(2), Down(2), Left, Right,
Left, Right, B, A, Start at
the Frogger title screen for higher resolution graphics.
A sound will confirm correct code entry.
Gyruss:
Advanced resolution and bonuses: Press Up(2), Down(2), Left, Right,
Left, Right, B, A, Start at
the Gyruss title screen. A sound will confirm correct code
entry. The game will now have higher resolution graphics, additional
lives, a bonus level, and the permanent dual weapon.
Rush N' Attack:
Extra lives and levels: Press Up(2), Down(2), Left, Right,
Left, Right, B, A, Start at
the Rush N' Attack title screen. A sound will confirm correct
code entry. The two extra levels will be available at the end
of the game.
Scramble:
Advanced resolution and fighter plane: Press Up(2), Down(2), Left, Right,
Left, Right, B, A, Start at
the Scramble title screen for higher resolution graphics
and the choice of a fighter plane. A sound will confirm correct
code entry.
Information in this section was contributed by Frans Wuijts.
Time Pilot:
Bonus level and autofire: Press Up(2), Down(2), Left, Right,
Left, Right, B, A, Start at
the Time Pilot title screen. A sound will confirm correct
code entry. A prehistoric level will appear during game play.
Additionally, hold Shoot to constantly fire your weapon.
Yie-Ar Kung Fu:
Bonus fighters and matches: Press Up(2), Down(2), Left, Right,
Left, Right, B, A, Start at
the Yie-Ar Kung Fu title screen. A sound will confirm correct
code entry. The bonus fighters will be unlocked after a single
player game, or may be immediately selected in versus mode. Additionally,
you will have two more fights at the end of the tournament.
