Here are some cheats and tips for the game Contra.
Note: This game is also titled Probotector or Gryzor.
Thirty lives per continue:
Press Up(2), Down(2), Left, Right,
Left, Right, B, A before the demonstration
begins at the title screen. Then, press Start to begin
the game in single player mode or Select, Start
to begin in two player mode
Transfer lives:
Begin game play in two player mode. Press A + B
when losing a life to use a life from the other player.
All weapons:
Press Down(2), Up(2), Right, Left,
Right, Left, A + B before the demonstration
begins at the title screen.
Level Password
2 1227
3 0501
4 0948
5 2168
6 0666
7 1192