Codes to type in while playing:
"FREZ"--------------------------Freeze the game
"PAC"----------------Pacman moves across screen
"FISH"-----------Makes a fish leap out of water
"BIRD"-----------------Bird flies across screen
"PERI"-------------Periscope rises out of water
"ANBK"----------------------------------Message
"ANGL"----------------------------------Message
"EDHK"----------------------------------Message
"FOOK"----------------------------------Message
"GLZP"----------------------------------Message
"GPZP"----------------------------------Message
"SHAH"----------------------------------Message
"SIMR"----------------------------------Message
"STEW"----------------------------------Message
"SUNL"----------------------------------Message
"TOTO"----------------------------------Message
"FUCK"--Resets the game if you type it in twice
"CUNT"--Resets the game if you type it in twice
"FAST"---------------------------------Not sure
"TITL"---------------------Back to title screen
"ARCH"----------------------------------Message
"JACQ"----------------------------------Message
"SLAN"----------------------------------Message
"DATE"----------------------------------Message
"WANK"----------------------------------Message
"DICK"----------------------------------Message
"JUMP"----------------------------------Message
"GERM"-------------------------Switch to german
"FILT"----------------------------Filter on/off
After you get hit, pause the game and unpause the game. You are now invincible (must do this every level).