The game natively supports Metal, I suspect that's why they chose it.

Yeah, did you notice they also ran it at 1080p and it really didn't look all that great?

I was actually a bit surprised they would break that kind of a demo out at WWDC -- I've seen that game not running in emulation and it was beautiful. That demo wasn't.

I agree the game definitely did not look like it was intended to and from that perspective it looked bad.

Looking at it without context however, it demonstrated the capability of the platform to run a AAA game without developer optimization/consideration.

And it demonstrates someone could make a stylized game similar to Fortnite.

Yeah, I would agree with that. It definitely demonstrated that gaming is possible even under Rosetta, which is an accomplishment. Watching some other stuff from them this morning, it seems like they're passing the metal calls directly through to the GPU (which makes sense), even while translating CPU calls from x86 to ARM.