Both Claude and GPT5 can single shot this type of game. The score counter looks exactly like the type of thing Claude spits out.

OP made the game with its own engine so I think that makes it very unlikely

Fair enough, it is impossible to know. I'm making an assumption based on the fact that the use of AI wasn't mentioned anywhere I could see, and people usually mention it.

Vibe-coding is old news. We’ve moved on to ant-coding.