Thunder Force IV Classic
Sega Genesis / Mega Drive · cheat codes
Sub-Terrania cheats & codes
39 codes for Sub-Terrania on the Sega Genesis / Mega Drive, including Action Replay codes.
Sub-Terrania Action Replay codes
How to use: Datel's Action Replay sat between the console and the game. Enter codes on its menu before starting the game, or paste them into your emulator's cheat menu.
| Effect | Code |
|---|---|
| Infinite Fuel | FF5ED5:63 |
| Infinite Mega (Weapons Fire) | FF5EE1:63 |
| Infinite Ships | FF0035:09 |
Sub-Terrania Other codes
How to use: Additional codes collected by the community. Enter them through your emulator's cheat menu, choosing the format that matches your emulator.
| Effect | Code |
|---|---|
| Enable grid mode [can scroll around the map] | AK3B-GAHT |
| View end of game | A33B-GAHL |
| Start with 1 life | AF3V-GABY |
| Start with 2 lives | AK3V-GABY |
| Start with 3 lives | AP3V-GABY |
| Start with 4 lives | AV3V-GABY |
| Start with 6 lives | A33V-GABY |
| Start with 7 lives | A73V-GABY |
| Start with 8 lives | BB3V-GABY |
| Infinite lives | ADDT-JACE |
| No fuel loss from idling | DVRB-CA46 |
| No extra fuel loss from flying forward | B5KA-RA8E |
| No extra fuel loss from flying backward | B5KT-RA42 |
| Mega-shot recharges immediately | 2B0T-MGLT
BV0T-LA40 |
| Infinite missiles | SF3T-MEYJ |
| Heal at 2x the normal speed | TBRB-CCB4 |
| Heal at 4x the normal speed | ABRB-CGB4 |
| Heal very quickly | ABRB-DAB4 |
| Heal almost instantly | AFRB-CAB2 |
| Start on level 2 | AK3B-GAHY |
| Start on level 3 | AP3B-GAHY |
| Start on level 4 | AV3B-GAHY |
| Start on level 5 | AZ3B-GAHY |
| Start on level 6 | A33B-GAHY |
| Start on level 7 | A73B-GAHY |
| Start on level 8 | BB3B-GAHY |
| Start on level 9 | BF3B-GAHY |
| Infinite Fuel | FF5ED4:0063 |
| Infinite Mega (Weapons Fire) | FF5EE0:0063 |
| Infinite Ships | FF0034:0009 |
| Master Code (improved) | JXBA-JA3G |
| Less gravity (Normal mode). | ABDA-TJAL |
| Much less gravity (Normal mode). | ABDA-TCAL |
| Much less gravity (Easy mode). | ABCT-TCGG |
| Enabled Play Stage, Demo Play, Test Mode | ABBB-GA6E |
| Charge Power Meter Mega Always On Maximum | A30T-LA4A |
Using cheats today
Original cheat devices like the Game Genie, Action Replay and GameShark still turn up second-hand and work with original cartridges. Most modern emulators also have a built-in cheat menu that accepts these formats, so you can toggle codes on and off without extra hardware. Codes can differ between regional releases and revisions of a game; if one doesn't work, try the code list for another version.
Cheats can corrupt save files in rare cases, so back up your saves before experimenting.
Sub-Terrania walkthroughs & guides
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Cheat codes are from the libretro-database community collection, used under CC BY-SA 4.0; the code tables on this page are shared under the same license. Codes are provided as-is: some may not work on every version of the game.