The best method of disposing of the end of level guardians is to stay at the very bottom of the screen and continously shoot at the nasties. The guardians will almost touch you at times, but if you stay firmly at the bottom, they won't harm you.
Enter "TULEBY" everywhere to get to next level.
Log on the Intex computer on deck 2 and type any of the following:
"I CANT BE ARSED TO PLAY THE FIRST LEVELS"------Skips to level 3
"AND THE GOOD LORD SAID LET THERE BE FLAPSHOTS"-Skips to level 4
"I WONDER IF DOLLY PARTONS FANNY IS AS BIG AS HER TITS"--Level 5
"MANCHESTER UNITED CANT FLY AIRPLANES"----------Skips to level 6
"MAN UTD CANT FLY AIRPLANES"--------------------Skips to level 6
"SHINE ON YOU CRAZY DIAMOND"--------------------Shows the ending
"OH GIMME SOME KEYS IVE GOT A HARD ON"--Infinite keys player one
"I AM IMMORTAL OR SUMMAT LIKE THAT"-----------------Invicibility
"IS IT TRUE THAT THE ALIENS SUPPORT MAN UTD"-Makes aliens weaker
"PISSED AS A FART"---------------------Reverse joystick controls
"THE IRAQIS MADE THE WEAPONS"---------Makes players weapons crap
"SALMAN RUSHDIE PLAYS ALIEN BREED"--------Makes player invisible
"BEWARE ALIENS SPADGE HAS DROPPED ONE"-----Makes aliens run away
"PITBULLS ON THE LOOSE"-----------------Makes aliens extra nasty
"ALIENS ARE FAGGOTS"-----------------------------Infinite health
"PUFFNUTS MODE"--------------------------------Makes aliens slow
"BEN JOHNSON TRAINED THESE ALIENS"-------------Makes aliens fast
"STEVIE WONDER"--------------------------Turns the screen purple
"GURU TIME"-----------------------------------Reset the computer
"ST EMULATOR"----------------------------Gives you shit graphics
"PC EMULATOR"------------------------Disables the Intex Computer
"US GOLD"-----------------------------------Automatic zero score
"GIVE ME POWER YOU POXY FUCKWIT"----------------------------????
"LET ME SPONGE SOME CASH YER TWAT"-----50.000 credits player two
"PASS THE BUCKOS NOBFACE"---------------infinite keys player two
"I EAT PITBULLS FOR FUCKING BREAKFAST MATE"---7 lives player one
"JUST CALL ME DEEP THROAT"----------------------7 lives player 2
"BLIMEY GUVNOR LOOK AT THE SIZE OF HIS JOHN THOMAS"in. energy p2
"ELVIS MODE"--------------------------no sound effects or colour
"I JUST LOVE TEAM17 SOFTWARE"--------------------Score + 100.000
"IVE BEEN ON THE CURRY AGAIN"----make fart sound when firing gun
"GAMESX" --------- "JULIE" -------------- "ALISON"
"MARTIN" --------- "MARTYN" ------------- "ALLISTER"
"RICO" ----------- "AMIGA FORMAT" ------- "AMIGA POWER"
"AMIGA ACTION" --- "AMIGA USER" --------- "JASON HOLBORN"
"BEANBAG" -------- "FUCK OFF" ----------- "TILT"
"PINK FLOYD" ----- "NBS" ---------------- "ABOTS"
"PHS" ------------ "MICK ROBINSON" ------ "DEBBIE"
"ELAINE" --------- "TUG" ---------------- "MC HAMMER"
"XR5I" ----------- "GARDEN FIEND" ------- "HOOVER"
"MICROBYTE" ------ "THE COMPUTER STORE" - "VIRGIN"
"GALLUP" --------- "MAN UTD" ------------ "FRAZZE"
"JOGGAN" --------- "KOKKOSLAVEN" -------- "GIRLS DOWNTOWN"
"GENERAL MOTORS" - "SEGA" --------------- "ME ANDREAS"
"LINDA" ---------- "KYSINGER" ----------- "DEPECHE"
"ANTIACTION" ----- "LZ" ----------------- "JONATHAN FORBES"
"LITH" ----------- "STAFFAN" ------------ "ANDREAS"
"PETER" ---------- "CHEAT" -------------- "LYSATOR"
"BOBERG" --------- "HALLA" -------------- "STEFFAN"
"KTH" ------------ "RON" ---------------- "C19"
"BERING" --------- "ULRIKA" ------------- "TEQUILA"
"FULL CONTACT" --- "LEEDS" -------------- "SPADGE"
"LIVERPOOL" ------ "NEWCASTLE BROWN" ---- "NCE"
"DAVE BROADHURST WANTS TO CHEAT"
When you enter the last letter of the desired word you should hear a crunch sound. If you don't hear the sound press 'RETURN' and then enter the word or phrase again. The reason you should press 'RETURN' is none of the cheats have return in them, so pressing it resets the input stream.