Official Game Genie Codes
| SZNUIYVG | Infinite lives in main game
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| SXUEZPVG | Infinite lives in sub-game
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| AAUGSZZA | Start with 1 life
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| IAUGSZZA | Start with double lives
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| AAUGSZZE | Start with triple lives
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| VGKKNXUK | Start with 3-way gun
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| SXSTYNVK | Don't take damage from bullets and collisions
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| VTNZXVVK | Don't take damage from spikes
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| SZUOAOVK | Don't take damage from bullets and collisions in sub-game
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| XYXUUOEN | Autofire--main game
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| AAKUOOZA | Use with BIO Code 11 for im-proved autofire with normal gun
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| LAUKOZAA + XTUKUXVU | Start with 3 life energy capsules |
