Technically, that's not all of his levels. There's also the tutorial and the Advanced Features Demonstration. Though those probably wouldn't be very interesting to speedrun.
Looks like including Don't Eat the Mushroom wasn't such a good idea after all. It resulted in part of the speedrun getting muted.
I think it was fun to watch. Too bad he had lots of trouble with the corner jump and eventually just cheated to get past, even though the route around would not have been too much longer.Shows the runner doesn't know the map too well and only knows the route they need to take.