Alleyway Classic
Game Boy · cheat codes
Serpent cheats & codes
13 codes for Serpent on the Game Boy, including Game Genie codes.
Serpent Game Genie codes
How to use: Galoob's Game Genie plugged in between the console and the cartridge. Type the codes in on its start-up screen, then press Start. In emulators, add them through the cheat menu and choose the Game Genie format if asked.
| Effect | Code |
|---|---|
| Start With 5 Missiles | 057-C9D-E6A |
| Start With 8 Missiles | 087-C9D-E6A |
| Start With 15 Missiles | 0F7-C9D-E6A |
| Infinite Missiles On Pick-Up | 00F-B0E-E69 |
| Start With Smaller Tail | 157-C6D-4CA |
| Start With Longer Tail | 407-C6D-4CA |
Serpent 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 |
|---|---|
| Start with 5 missiles | 057-C9D-E6A |
| Start with 8 missiles | 087-C9D-E6A |
| Start with 15 missiles | 0F7-C9D-E6A |
| Infinite missiles on pick-up | 00F-B0E-E69 |
| Start with smaller tail | 157-C6D-4CA |
| Start with longer tail | 407-C6D-4CA |
| Win Immediately | C33-B9F-E61
FA5-0DF-A21 |
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.
Serpent walkthroughs & guides
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Mega Man IV Classic
Back to Serpent: is it worth playing?
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.