Cheat codes
Try these during the game:

DOOBIES
Infinite shields

MRTICKY
Infinite weapons

BENIHILL
Benny Hill-style cars

WOO-WOO
Havoc sirens

SUPACAM
Enemy Fall Cam


Level codes
Type in these codes on the level menu to play the corresponding mission. Unfortunately, if you complete these levels it won't take you onto the next; you'll have to re-enter another code instead.

1. MANDAV	2. DOLMAN
3. SONAGAV	4. ACEDUF
5. JOJOGUN	6. WENSKI
7. SAEGGY	8. MAZMAN
9. DAZMAN	10. DELUCS
11. ANDOOOO	12. KIMBCHS
13. ANDYMAN	14. YERMAN
15. OLLIEB	16. THEYOLK
17. TONYMASH	18. ANDYCROW
19. BIONIC	20. TSLATER
21. IAINTHOD	22. JONRITZ
23. CLAIREC	24. STEVEBOT
25. ANGUSF	26. EUANLEC
27. EDFIRE	28. STUBOMB
29. THONBOY	30. JIMMAC
31. PUGGER	32. ROSSCO
33. CAKEBOY	34. NIKNAK
35. SAGLORD	 

The above codes won't allow you to continue onwards when you complete a level, so you might prefer to use these instead...

1. SXYLAAAA	2. KJOXAAAA
3. UIXZAAAA	4. MKFHRFAA
5. WHLTMIAA	6. YITSRFAA
7. UWCQAAAA	8. MYKXQFAA
9. YIOQMIAA	10. CJWGRFAA
11. IKFNIVDA	12. GVFSAAAA
13. MGIZAAAA	14. EIQGRFAA
15. QSTZMIAA	16. EEIQRFAA
17. CHYRAAAA	18. UGZKAAAA
19. KFPGRFAA	20. YCQGNIAA
21. ICZINIAA	22. WHCIAAAA
23. KTUWQFAA	24. YQVWMIAA
25. IQEZMIAA	26. EGXTVCAA
27. SRPIMIAA	28. CRAUVCAA
29. ODHDWCAA	30. CPZRMIAA
31. YOVYMIAA	32. YAXTRFAA
33. CRZOVCAA	34. QOAPRFAA	 
35. OPLRMIAA