I had tried watching this movie about a week ago or so, and I couldn't get into it, because I didn't really know what the challenges were. Once I found a good description at http://info.sonicretro.org/Sonic_3_%26_Knuckles:_The_Challenges , the run became a lot more interesting. Certain challenges felt fairly slow, like the ones where you just have to follow Sonic, but that can't really be helped. (I was pretty surprised, though, how little you could be on screen and yet still not lose points in that one.) I'd say this is generally a publishable hack, but it is really long. However, the run's quality does feel sort of sloppy. I would definitely vote Yes to a more optimized runthrough, but at this point, I'm going with Meh. Nice idea for an April Fool's Day run, though!