Nintendo Entertainment System · cheat codes
Alien Syndrome cheats & codes
21 codes for Alien Syndrome on the Nintendo Entertainment System, including Game Genie codes.
Alien Syndrome 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 |
|---|---|
| Infinite Time | SZUNYXVK |
| Set Timer To 440 | GUONPPLL |
| Both Players (1 Life) | PAOGPIGA |
| Both Players (8 Lives) | AAOGPIGE |
| Start With Flame Thrower | PAVKGIAA |
| Start With Fireball | ZAVKGIAA |
| Start With Laser | LAVKGIAA |
| Don't Lose Life When Shot Or Touched | AEEKXONY |
| Don't Lose Life From Falling Down Holes | AANGVXNY |
| 1 Life After Continue | PEXGGLGA |
| 8 Lives After Continue | AEXGGLGE |
| Start On Round 2 | PENNELAP
KUNNXLAA
LENNULAZ |
| Start On Round 3 | ZENNELAP
KUNNXLAA
LENNULAZ |
| Start On Round 4 | LENNELAP
KUNNXLAA
LENNULAZ |
| Start On Round 5 | GENNELAP
KUNNXLAA
LENNULAZ |
| Start On Round 6 | IENNELAP
KUNNXLAA
LENNULAZ |
| Start On Round 7 | TENNELAP
KUNNXLAA
LENNULAZ |
Alien Syndrome 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 |
|---|---|
| Infinite Lives | OUYKKT |
| Infinite Time | SUANPN |
| Invincibility | OLZEEP |
| Round Select Enabled | EYUALLEI |
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.