Small characters: Highlight the "Exit" selection on the options
screen and press [Left, Right(2), Down, Right,
Left, Right, Left(2),Right, Down]
four times and begin game play.
Thirty lives: Press C, Left, Down, B,
Right at the main menu.
Unlimited lives: Press Left, Right, Up, Down,
Left, Right, Up, Down, Left,
Right, Up, Down at the title screen.
Unlimited weapons: Press Up, Left, Down, A,
C, D at the player selection screen.
View ending sequence: Press B, D, B, D, B,
D at the main menu.
