Great game! I like that you encounter new enemies in rooms for themselves so that its easier to learn their patterns. I also really like the warping look of the game.
I encountered just one bug. After being hit by the spear-guy, the player became intangible and uncontrollable, so I had to restart. Which isn't that big of a problem since a run up the tower is relatively short.
Well done! I'm definitely coming back to chase that high score higher!