The little bit I could run on my garbagey decade-old laptop I liked.
When I got to the first enemy neither I nor the enemy could deal any damage, save for one little hit taken when I elected to just walk away. This could have something to do with the fact that my framerate was likely under 10FPS, so it's possible this won't come up for anyone running this on a real computer.
While running away I jumped back over the first hurdle at an angle and clipped through the wall. I consider this an exciting feature that should be(and secretly is) in every game.
Anyway, good on you for making it. I hope to catch one of the schmucks playing it eventually.