I re-played the game and it's very cool. I like the fact that there is a boss fight and its music. Also, I don't know if these are bugs but I got trough a purple door (without activating it or anything) near the end with the "Demon", and I got stuck on the final screen (I don't think it's a glitch but it'd be cool to just have a little menu or something that say "thanks for playing").