Building up your roster in Kaiju Alpha depends on accumulating EXP and collecting Cells; unlocking stronger monsters also requires these two resources. So checking the code box before starting a new grind session can significantly cut down on the hours you would otherwise waste. As of September 2026, there is only one valid code in the game, and its reward is quite generous.
Active Kaiju Alpha codes
The following code is currently working. Since codes usually have a short lifespan, it is worth making sure this list is up to date right before you use it.
| Code | Reward |
|---|---|
| Singularity | 100K Cells |
The full reward is added to your account in one go; there is no separate quest or level requirement. Since Cells are used to buy and unlock new Kaiju in the game, this code is especially useful for players just starting to build their roster.
How to use codes?
Using codes in Kaiju Alpha takes just a few seconds. All you need to do is follow these steps in order:
- Tap the Option button on the left side of the screen.
- Scroll all the way down in the Options menu that opens.
- Enter the working code above in the code box.
- Press Enter on your keyboard to confirm the code.
If the code is not accepted, capitalization errors or leading/trailing spaces are the most common reasons; typing the code manually instead of copying and pasting it can sometimes make a difference too.
Expired codes
These codes may have been active before, but they no longer work; they are kept in the list so you do not waste time trying codes copied from an old list:
- BadSonglee
- ROSE
- KAONTOP
- XECRETISREAL
- DeawyGIGACHAD
Where are new codes posted?
In Kaiju Alpha, codes usually arrive alongside update, event, and milestone announcements; that makes the developers' own announcement channels the fastest source. Following the game's official Discord server is the most practical way to see new codes the moment they go live. For major announcements, you can also check the game's official Roblox page.
Because codes are valid for a limited time, it is safest to use the code you have right away instead of putting it off until your next game session. Cells rewards in particular make a major difference when you are close to the amount needed to unlock a new Kaiju.