Power-ups:
Quickly press one of the following default controller actions during game play to make the corresponding power-up appear next to your character. Note: Each power-up may only be enabled five times per level. 

     Shield
     Press Down, Left, C-Left, C-Right. 

     Turbo
     Press Left(2), Right(2), C-Up. 

     Two-way shot
     Press Up, C-Up, Up, C-Up. 

     Three-way shot
     Press Right(2), C-Left, C-Down. 

     Four-way shot
     Press Down(2), Up, C-Right. 

     Pulse wave
     Press Up, Down, C-Right, C-Left. 

     Flame thrower
     Press Down, Right, Down, Right, C-Right. 

Level select:
Press Down, Up, C-Left, Down, C-Left, C-Right, Down, C-Right at the setup screen. 

Fifty lives:
Press Up(2), Down(2), Left, Right, Left, Right, C-Left, C-Right, C-Left, C-Right at the setup screen. 

Monochrome mode:
Press Up, Down, Right, C-Left, Down, Up, Left, C-Right, Up, Down at the setup screen. 

CPU control:
Quickly press [Left, Right, Up, Down, Left-C, Right-C, Left-C, Right-C] three times at the setup screen. 

Extra lives:
Enter one of the following passwords to start the game with 110 extra lives at the corresponding difficulty level. 

     Easy difficulty level
     Enter BSBBBBTJBB as a password. 

     Normal difficulty level
     Enter BCBBLBTJBB as a password. 

     Insane difficulty level
     Enter BFBBBCTJBB as a password.