Twin Cobra
1 SANA-BJZY Start at stage 2
2 SANA-BNZY Start at stage 3
3 SANA-BTZY Start at stage 4
4 SANA-BYZY Start at stage 5
5 SANA-B2ZY Start at stage 6
6 SANA-B6ZY Start at stage 7
7 SANA-BAZY Start at stage 8
8 AEVA-BA9C Start with 1 life
9 CAVA-BA9C Start with 10 lives
10 EYVA-BA9C Start with 25 lives
11 LAVA-BA9C Start with 50 lives
12 XEVA-BA9C Start with 99 lives
13 TEYT-AEZ4 Infinite lives
14 AEVA-AAFY Start turns with 1 bomb instead of 3
15 AYVA-AAFY Start turns with 5 bombs instead of 3
16 A6VA-AAFY Start turns with 7 bombs instead of 3
17 AJYA-AA5R Infinite bombs
18 9TVA-BCFG + AEVA-AAFJ Start turns with green weaponry
19 9TVA-BCFG + AJVA-AAFJ Start turns with blue weaponry
20 9TVA-BCFG + ANVA-AAFJ Start turns with yellow weaponry
21 9TVA-BCFN + AJVA-AAFR Start turns with double power boost
22 9TVA-BCFN + ATVA-AAFR Start turns with triple power boost
23 AT7T-AA8T S pick-up worth nothing
24 HE7T-BJ0T S pick-up gives 2x power
25 HE7T-BJ1T Bomb pick-up adds 2 bombs
26 HE7T-BN1T Bomb pick-up adds 3 bombs
27 HAVA-AE0L Keep P pick-ups after losing a life
28 9V6T-BGBE + AF6T-AABG Start with 1 credit
29 9V6T-BGBE + AZ6T-AABG Start with 5 credits
30 9V6T-BGBE + CB6T-AABG Start with 10 credits
31 9V6T-BGBE + EZ6T-AABG Start with 25 credits
32 9V6T-BGBE + LB6T-AABG Start with 50 credits
33 9V6T-BGBE + XF6T-AABG Start with 99 credits
34 JF6T-AEY6 Infinite credits