Thunder Fox
AATA-ACBE Normal-game clock starts at 100
AATA-AEBE Normal-game clock starts at 200
LATA-AEBE Normal-game clock starts at 250
AATA-AJB2 Long-game clock starts at 400
AATA-ALB2 Long-game clock starts at 500
LATA-ARB2 Long-game clock starts at 750
XETA-AWB2 Long-game clock starts at 999
AJTA-AA6A Infinite time--most of game
AANT-AADW Start with 1 life
AENT-AADW Start with 2 lives
ANNT-AADW Start with 4 lives
AJNT-AABT Start at stage 2
ANNT-AABT Start at stage 3
ATNT-AABT Start at stage 4
AYNT-AABT Start at stage 5
A2NT-AABT Start in stage 5 against giant robot
JZWA-AAGC Flame throwers have less fuel
AKWA-AAGG Each bazooka holds 2 rounds
AZWA-AAGG + AZXA-AAAG + AZXA-AAAR Each bazooka holds 5 rounds
BFWA-AAGG + BFXA-AAAG + BFXA-AAAR Each bazooka holds 9 rounds
CBWA-AAF8 Each machine gun holds 10 rounds
EZWA-AAF8 Each machine gun holds 25 rounds
LBWA-AAF8 + LBXA-AAAC + LBXA-AAAL Each machine gun holds 50 rounds
XFWA-AAF8 + XFXA-AAAC + XFXA-AAAL Each machine gun holds 99 rounds
BBFA-AA46 No loss of life if sucked into space
AAZT-AADN + ABCT-AAD0 All weapons have unlimited capacity
A2VT-AA3R Invincibility
AENT-AAB0 + AENT-AACG Start with 2 credits
ANNT-AAB0 + ANNT-AACG Start with 4 credits
A6NT-AAB0 + A6NT-AACG Start with 8 credits
BENT-AAB0 + BENT-AACG Start with 10 credits
AC6T-AAEW Infinite credits