Here are some working codes (tested) I found for ntsc version of this game:
Mastercode
F01001B8 0000000E
Infinite health P1
21972a4a 469c4000
Infinite health P2
21972B10 469c4000
Always have Special Attack P1
21972a5e 469c4000
Always have Special Attack P2
21972b7e 469c4000
Infinite Power Special Suite
21972c56 469c4000
99 Battle Points
21e2b480 00000063
Infinite health satellite
2187FB1A 469c4000
Enter a green cabinet and play as
20442740 000000XX
00=Duke
01=Scarlet
02=Heavy Duty
03=Ripcord
04=Gung-Ho
05=Snake Eyes
06=BackBlast
07=Agent Helix
08=Shipwreck
09=Beachhead
0A=Kamakura
0B=Flash
0C=Duke original suit
0D=Scarlet original suit
0E=Storm Shadow
0F=Baroness
10=Firefly
11=Destro
Mastercode
F01001B8 0000000E
Infinite health P1
21972a4a 469c4000
Infinite health P2
21972B10 469c4000
Always have Special Attack P1
21972a5e 469c4000
Always have Special Attack P2
21972b7e 469c4000
Infinite Power Special Suite
21972c56 469c4000
99 Battle Points
21e2b480 00000063
Infinite health satellite
2187FB1A 469c4000
Enter a green cabinet and play as
20442740 000000XX
00=Duke
01=Scarlet
02=Heavy Duty
03=Ripcord
04=Gung-Ho
05=Snake Eyes
06=BackBlast
07=Agent Helix
08=Shipwreck
09=Beachhead
0A=Kamakura
0B=Flash
0C=Duke original suit
0D=Scarlet original suit
0E=Storm Shadow
0F=Baroness
10=Firefly
11=Destro

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