The graphics look like AI

Yes. There is a lot more to a competent game than the graphics. The text often doesn't fit on the UI properly (at least not in my browser,) the music is generic and doesn't fit the motif, and the gameplay itself is terribly simplistic. The sprites are nice, although in a few frames I think I saw some errors with the transparency.

Like every other vibe-coded game out there it's a good technical demo for the capabilities of AI but it's not a good game.