1. ATGT-4A6L - Invincibility

2. RG7T-26XJ - Infinite lives

3. REHA-46V8 - Infinite time to complete round, switch off at end of round to go on

Codes 4 through 11: normal mode only
4. GEET-4AEN - Start with 2 lives

5. GJET-4AEN - Start with 3 lives

6. GTET-4AEN - Start with 5 lives

7. GYET-4AEN - Start with 6 lives

8. G2ET-4AEN - Start with 7 lives

9. G6ET-4AEN - Start with 8 lives

10. HAET-4AEN - Start with 9 lives

11. HEET-4AEN - Start with 10 lives

12. AHGT-2AFJ - Start with 1 health point

13. ASGT-2AFJ - Start with 3 health points

14. A1GT-2AFJ - Start with 5 health points

Codes 15 through 31: normal mode only
15. GHGT-3AM4 - 10 points needed to get to complete round

16. GMGT-3AM4 - 20 points needed to get to complete round

17. GSGT-3AM4 - 30 points needed to get to complete round

18. GXGT-3AM4 - 40 points needed to get to complete round

19. GIGT-3AM4 - 50 points needed to get to complete round

20. G9GT-3AM4 - 70 points needed to get to complete round

21. HDGT-3AM4 - 80 points needed to get to complete round

22. HHGT-3AM4 - 90 points needed to get to complete round

23. GDGT-3AMT - 5 points needed to get to bonus round

24. GHGT-3AMT - 15 points needed to get to bonus round

25. GMGT-3AMT - 25 points needed to get to bonus round

26. GSGT-3AMT - 35 points needed to get to bonus round

27. GXGT-3AMT - 45 points needed to get to bonus round

28. G1GT-3AMT - 55 points needed to get to bonus round

29. G5GT-3AMT - 65 points needed to get to bonus round

30. G9GT-3AMT - 75 points needed to get to bonus round

31. HHGT-3AMT - 95 points needed to get to bonus round