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...