GAME GENIE CODES: Sub-Terrania. |
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| No. | Code | Effect |
| 1 | AK3B-GAHY | Start on level 2 |
| 2 | AP3B-GAHY | Start on level 3 |
| 3 | AV3B-GAHY | Start on level 4 |
| 4 | AZ3B-GAHY | Start on level 5 |
| 5 | A33B-GAHY | Start on level 6 |
| 6 | A73B-GAHY | Start on level 7 |
| 7 | BB3B-GAHY | Start on level 8 |
| 8 | BF3B-GAHY | Start on level 9 |
| 9 | AK3B-GAHT | Enable grid mode (can scroll around the map) |
| 10 | A33B-GAHL | View end of game |
| 11 | AF3V-GABY | Start with 1 life |
| 12 | AK3V-GABY | Start with 2 lives |
| 13 | AP3V-GABY | Start with 3 lives |
| 14 | AV3V-GABY | Start with 4 lives |
| 15 | A33V-GABY | Start with 6 lives |
| 16 | A73V-GABY | Start with 7 lives |
| 17 | BB3V-GABY | Start with 8 lives |
| 18 | ADDT-JACE | Infinite lives |
| 19 | DVRB-CA46 | No fuel loss from idling |
| 20 | B5KA-RA8E | No extra fuel loss from flying forward |
| 21 | B5KT-RA42 | No extra fuel loss from flying backward |
| 22 | 2B0T-MGLT + BV0T-LA40 | Mega-shot recharges immediately |
| 23 | SF3T-MEYJ | Infinite missiles |
| 24 | TBRB-CCB4 | Heal at 2x the normal speed |
| 25 | ABRB-CGB4 | Heal at 4x the normal speed |
| 26 | ABRB-DAB4 | Heal very quickly |
| 27 | AFRB-CAB2 | Heal almost instantly |