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
Begin game play in two player mode. Press A + B
when losing a life to use a life from the other player.
Press Down(2), Up(2), Right, Left,
Right, Left, A + B before the demonstration
begins at the title screen.