3CAC-67DF Infinite credits
C7BF-0DAD Start with 1 credit instead of 4
84BF-0DAD Start with 2 credits
B4BF-0DAD Start with 3 credits
BEBF-0DAD Start with 5 credits 
68BF-0D6D + C4BF-0DAD Start with 8 credits
D0BF-0D6D + C3BF-0DAD Start with 12 credits
EEB3-DD0D + CBB3-DDDD Start with 1 life instead of 3
DDB3-DD0D + CBB3-DDDD Start with 2 lives
D7B3-DD0D + CBB3-DDDD Start with 5 lives
D9B3-DD0D + CBB3-DDDD Start with 7 lives
D5B3-DD0D + CBB3-DDDD Start with 9 lives
F5B3-DD0D + CBB3-DDDD Start with 25 lives
7DB3-DD0D + CBB3-DDDD Start with 50 lives
14B3-DD0D + CBB3-DDDD Start with 100 lives
CBCC-0407 Infinite lives
BAAD-ADDF Continue with 1 life instead of 3
DDAE-670F + CBAE-67DF Continue with 2 lives
D7AE-670F + CBAE-67DF Continue with 5 lives
D9AE-670F + CBAE-67DF Continue with 7 lives
D5AE-670F + CBAE-67DF Continue with 9 lives
DF65-67D4 + CB65-64A4 + DD65-6704 + 3C65-6764 Start on stage 2
D465-67D4 + CB65-64A4 + DD65-6704 + 3C65-6764 Start on stage 3
D765-67D4 + CB65-64A4 + DD65-6704 + 3C65-6764 Start on stage 4
D065-67D4 + CB65-64A4 + DD65-6704 + 3C65-6764 Start on stage 5
D965-67D4 + CB65-64A4 + DD65-6704 + 3C65-6764 Start on stage 6
D165-67D4 + CB65-64A4 + DD65-6704 + 3C65-6764 Start on stage 7
D565-67D4 + CB65-64A4 + DD65-6704 + 3C65-6764 Start on stage 8
C2C8-0407 + C2C8-0767 Keep captured weapon until game ends (except claw and shield)