Get repeat on pick-up of 3-way gun by Galoob
Game Genie
GDNT-AA6N
Get repeat on pick-up of 5-way gun by Galoob
Game Genie
RHNT-A6Z6
Get repeat on pick-up of fission gun by Galoob
Game Genie
KDNT-AA5Y
Get repeat on pick-up of missiles by Galoob
Game Genie
DDNT-AA7E
Infinite lives by Galoob
Game Genie
AJWT-AA70
Infinite Lives by VisitntX
Raw
FF803A:0007
Infinite Lives by Rune
Raw
FF803A:0009
Infinite Lives The Purchase of Weapons, etc. (Lives are not used) by Fanat
Game Genie
AJ0A-AA98
Invincibility by VisitntX
Game Genie
SACA-AE0L
3JCA-AHGN
Invincibility by VisitntX
Raw
FF83CA:0000
Invincibility from all Enemies and Bosses by Fanat
Game Genie
 R1VT-A60C
 R1TT-A6ZN
 R1YA-A6VR
 R1WT-A6ZN
 R1ZT-A6XC
 R10A-A6T0
 R11A-A6TJ
 R12A-A6V2
 RZ4A-C60R
 RZ6A-C6W8
 RZ3A-C6ZN
 R0LT-C60T
 R1YT-A6Y2
 R13A-A6TA
 RZAA-C6ZA
 R0DT-C6T0
 R0CT-C6VG
 R0CA-C60Y
 R0KA-C6YE
 R0EA-C6XS
 RZ8A-C602
 R0KT-C61R
 RZ8T-C6T8
 RZ9A-C61L
 RZWA-C6V0
 R0JT-C6Z4
 RZ0A-C6W8
 RZYT-C6W2
Keep weapons after dying by Galoob
Game Genie
H2WT-AA8L
Repeat lasts forever by Galoob
Game Genie
RZ8T-A6TR
Repeat lasts twice as long by Galoob
Game Genie
CDNT-A6GG
Shields cost 2 crystals by Galoob
Game Genie
AMNT-AAHC
Shields cost 6 crystals by Galoob
Game Genie
A5NT-AAHC
Shields granted for each crystal by Galoob
Game Genie
AHNT-AAHC
Shields last 30 seconds by Galoob
Game Genie
BCRA-ARBN
Shields last until next level by Galoob
Game Genie
98RA-B93N
Stage Modifier by JLukas
Raw
FF802A:00??
Start With 39 Lives by VisitntX
Game Genie
E6JT-AAEG