1. ALAT-AA4J - Master code, must be entered
2. 358A-A396 - Go to stage 3 after stage 1
3. SD8A-A596 - Go to stage 4 after stage 1
4. KM8A-A996 - Go to stage 5 after stage 1
5. 7M8A-A996 - Go to stage 6 after stage 1
6. JD8A-BD96 - Go to stage 7 after stage 1
7. DX8A-BF96 - Go to stage 8 after stage 1
8. AKGT-AA8R - Rex is impervious to most enemy fire
9. 2VGT-AA8J - Rex is invisible to most enemy fire
10. AL8A-AA8T + AL8A-AA9R - Rex cannot burn up re-entering atmosphere
11. AKXA-AA4A - Rex cannot be electrocuted
12. AJ7T-AA20 - Chron cyborg cannot harm Rex
13. AL4T-AA92 + AK0A-AA78 + AL5T-AA60 - Rance's death ray cannot harm Rex
14. CB8A-AACW - HG gun carries 10 rounds instead of 20
15. XF8A-AACW - HG gun carries 99 rounds
16. THTT-AEWN - HG gun carries infinite ammo
17. GB8A-AACY - 25-SC weapon carries 30 rounds instead of 60
18. XF8A-AACY - 25-SC weapon carries 99 rounds
19. THTT-AEZ2 - 25-SC weapon carries infinite ammo
20. EZ8A-AAC0 - 40-SC weapon carries 25 rounds
21. XF8A-AAC0 - 40-SC weapon carries 99 rounds
22. THVA-AEXE - 40-SC weapon carries infinite ammo
23. EZ8A-AAC2 - GL weapon carries 25 grenades instead of 50
24. XF8A-AAC2 - GL weapon carries 99 grenades
25. THVT-AEVC - GL weapon carries infinite grenades
26. EB8A-AAC4 - MGL weapon carries 20 grenades instead of 45
27. XF8A-AAC4 - MGL weapon carries 99 grenades
28. THVT-AEZC - MGL weapon carries infinite grenades
29. AZ8A-AADL - Burst Attacker carries 5 rounds instead of 10
30. XF8A-AADL - Burst Attacker carries 99 rounds
31. THXT-AEVY - Burst Attacker carries infinite ammo
32. CZ8A-AADJ - DD weapon carries 15 rounds instead of 30
33. XF8A-AADJ - DD weapon carries 99 rounds
34. THXA-AEZE - DD weapon carries infinite ammo
35. EZ8A-AAC6 - 150 BZ weapon carries 25 rounds instead of 50
36. XF8A-AAC6 - 150 BZ weapon carries 99 rounds
37. THWA-AETE - 150 BZ weapon carries infinite ammo
38. EB8A-AAC8 - 203 BZ weapon carries 20 rounds instead of 40
39. XF8A-AAC8 - 203 BZ weapon carries 99 rounds
40. THWA-AEYE - 203 BZ weapon carries infinite ammo
41. EZ8A-AADA - MISSILE weapon carries 25 rounds instead of 50
42. XF8A-AADA - MISSILE weapon carries 99 rounds
43. THWA-AE00 - MISSILE weapon carries infinite ammo
44. EZ8A-AADC - M-POD weapon carries 25 rounds instead of 50
45. XF8A-AADC - M-POD weapon carries 99 rounds
46. THWT-AEX2 - M-POD weapon carries infinite ammo
47. GZ8A-AADE - E-AS weapon carries 35 rounds instead of 70
48. XF8A-AADE - E-AS weapon carries 99 rounds
49. THWT-AE02 - E-AS weapon carries infinite ammo
50. GB8A-AADG - E-CN weapon carries 30 rounds instead of 55
51. XF8A-AADG - E-CN weapon carries 99 rounds
52. THXA-AEW0 - E-CN weapon carries infinite ammo
53. ADZT-AAGA - 0 continues instead of 2
54. AXZT-AAGA - 4 continues
55. BHZT-AAGA - 9 continues
56. AMZT-AA4L - Infinite continues