Well I dunno, man, this looks like the sort of amusing prototype I'd expect to take a couple of days - though not to understate the value of getting it in 4 hours (and probably with less than 4 hours' continuous effort from the human). Iteration time is an important factor!

(Regarding the parting shot, I find myself once again, for the numerousth time, reminded of this curious lobsters comment that I'm having difficulty forgetting: https://lobste.rs/s/omq8rt/vibecoding_gets_emacs_patch_rejec... - perhaps not quite entirely directly germane here, I don't think, but, still, somehow, not quite entirely directly not.)

>This is the essence, AI is a super power, the world is ours

Don't me overdramatic. The guy who made Flappy Bird did it in a weekend without AI. A simple game like this wouldn't be difficult in any modern framework. That it can be vibe-coded in less than a day isn't really much value.

Something that would take us one month at least, full of bugs, AI now delivers in less than a day, full of bugs