One of the best games you've made, I would say. It's very clever and a good take on the genre. I can't get past the first floor because I suck at these games, but I can tell what you have here is quality work. The enemies are varied even on the first floor with plenty of bullet patterns. Some rooms feel just right, as if you are trying to unpack what to do and how to handle it.
And the music is the best from the soundtracks. Hey Pablo, more glow stick! >D
Good job and good luck.
