Now that I've gotten a bit farther, I can say that this game is very fun to play at its best since the movement feels good, but it's marred severely by a lack of polish. Checkpoints don't seem to function consistently; sometimes it would spawn me partway through a level, I'd get a bit further, but then I'd die and spawn at the very beginning of the level. Occasionally my dash momentum wouldn't stop and I'd fly forward all over the place. It would have been nice to have the option to press R to restart even when you're not dead, because there were points I fell through the floor and didn't hit a death plane, so I just kept falling forever. The lack of polish did sometimes work to my advantage (I'm not sure if you're supposed to be able to infinitely jump up walls), but I think it still should have been addressed.