Amazingly polished! The explosions, the breaking of the wall, the pacing of all the little enemies before the boss, I loved it! Similarly with the forgiving checkpoints and how they were beautifully integrated with the player just walking over the previous obstacle!
I was expecting something more "distinct" for the game genre competition part, but I guess they mashed well together? Still on the fence on this criterion, will come back later after compared all the other games. Super cool stuff!
EDIT: came back for the genre-mashing criterion, many games weren't as distinct as I would have thought. I guess now, after having played all games, Xanderwood's rule could be interpreted both ways of seamlessly matching them or having them completely separate...