Level select: Reset the Genesis ten times, then hold Down/Left
at the title screen. A level selection entry will appear on the
options screen.
Full power guns: Pause game play and press B(2), C, B(2),
C, Up, Down, A. Note: This code may
only be enabled once per game.
Secret options: Pause game play and press Up(3), Down(4),
Left(3), Right(3), C(2), B, A.
A total of 20 options will be available. Note: This code may only
be enabled once per game.
Five additional lives: Pause game play and press Right, Down,
Right, Down, Left, Up, Left,
Up, B, C, A. Note: This code may only
be enabled once per game.
