Bit late, but I'm quite certain the cheat menu did exist in that version. It has existed since wayyyy earlier, just the method of accessing it has changed a bunch of times. You used to have to tap the upper corner of the screen 7 times to bring it up instead of entering a code. There seems to be no leaked info of how to access it in the versions released around that time, I'd be very appreciative if you did decompile it and figure it out. I also prefer these older versions
Hey, I checked it myself and it’s true that the debug menu has existed for a very long time. I tested multiple builds and even found it in the very first public release (0.01).
Unfortunately, in the limited time I spent inspecting the earlier versions, I didn’t find an option as simple as entering a code. The most reliable method I found was force opening the menu using UnityExplorer together with BepInEx.
Since the game logic is largely driven by PlayMaker state machines rather than conventional C# scripts, the decompiled project offers very little readable logic to work with. Without access to the PlayMaker editor to view or inspect those state graphs, most of the behavior remains opaque. Given the amount of effort this would take under these conditions, I don’t really want to continue investigating it on my own.
One more thing: in version 0.38, I did find a code:
55122. It’s labeled as Tester Bypass, so maybe this could be a useful lead.