Level select:
Press Right(2), Up, Down, R, L, Start at the player select/skill screen. The word "Bingo" will confirm correct code entry. Alternatively, press Right(2), R, L, Start at the player select/skill screen.
Extra lives and continues:
Press Down, L, R, Up at the player select/skill screen. You can now set the number of lives and continues to a maximum of seven each. Alternately, press Left(2), Up, Down, L, R, Up at the player select/skill screen.
Sound test:
Press L, R, L(2), R at the option screen.
Hidden credits:
Hold L + R and press B as the Beam Software logo forms on the screen.
Turbo mode:
Highlight the "One Player" selection and press Left, Right, Left, Up, R(2). The word "Bingo!" will confirm correct code entry.
Additional lives:
Highlight the "Two Players" selection and press L, R, Up. The word "Bingo!" will confirm correct code entry. Up seven additional lives and continues will be available.
No enemies:
Enable the "Level select" code. Choose a circuit and hold Select when entering a room. Note: This may not be effective in some rooms. After ten keys are obtained, this trick may be used to reach the Pleasure Dome.
Secret rooms:
In the "Total Carnage" room in Arena 1, kill all enemies
and exit to the right.
In the "Buffalo Herd Nearby!" room in Arena 2, kill
all enemies and exit to the right.
In the "Secret Rooms Nearby!" room in Arena 3, kill
all enemies and exit to the right.
In Arena 3, move two rooms to the right of "Cobra Death",
to reach a room called "You Have Enough Keys!" or "Not
Enough Keys!". This depends on whether at least ten keys
were obtained. If an adequate number of keys have been collected,
kill all enemies and leave through the lower exit to reach the
Pleasure Dome.
Expert mode:
A question mark will appear in each of the secret rooms, the Pleasure Dome, and the M.C. Boss room. Collect all five to view a special ending. The game will restart at a faster difficulty level.
Easy two-player mode:
Stay in the corner and shoot enemies in two-player mode. This will allow the game to be easily completed.
