T=triangle S=square L,R,U,D=move D-pad left,right,up,down
Level Passwords:
Uraniumania - XXXTOXST
Repsychler - SOSSTOTT
Endless Bummer - SOSXTTSX
Viva Los Vagrantes - OTXTXSST
Endless Bummer(secret level) - TOXTXXTO
Secret Codes(enter during gameplay):
Invincibility- Press & hold select button while entering SSOOSST
Full Power-Up Press & hold select button while entering LSROUT
Kill annoying things(Queen Snagger, Danger Ranger, etc) Press & hold 
select button, L1, & R1 while entering LSLSLS

Movies(enter at password screen):
Entrance to Uraniumania - OOOTTTST
Entrance to Repsychler - OOOXTXTS
Entrance to Endless Bummer - OOOSSTTX
Entrance to Viva Los Vagrantes - OOOXXXSS
Game Over/Death - OOOOTOXO
Game Over/You Win - OOOTXXTO
Credits - OOOSOXXT
Exit/Quit - OOOTTOXS
Extra Movie - SSXSSTOS