Jack Bros. Emulator memory codes
How to use: These codes change values directly in the game's memory, written as address:value. They are meant for emulators: add them through your emulator's cheat menu.
| Effect | Code |
|---|---|
| Infinite Time | 05000112:46 |
| Invincible, Etc. | 05000150:FF
05000151:FF |
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.
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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.