I never would have guessed about the resolution, looks just fine to me.
I downloaded the game over the weekend, and while my brother and I have had fun with it, we've hit a major wall in the third cup at supersonic speed. My brother is an old F-Zero GX hand, so he's considerably better than I am, but even he can't break the top three to unlock the last supersonic cup. This is due almost entirely to Sunahara Desert. It's not just the lack of guardrails but the fact that seemingly tiny rocks blow you up when you go off road and the extremely zealous "No shortcuts!" replacements by the computer. My brother might be able to get past this eventually, but I'm coming in at like 8th place on this cup at best, and don't think I'll be able to improve. Pretty good game overall, though, and I'd say we got the NYC movie ticket price out of the experience.