Surprisingly fun game! At some point I was shooting extremely quick, very fun :D
About the shooting part, please let the player know he must shoot with arrow keys. I restarted the game twice; I thought it was bugged because I couldn’t progress through other ‘doors’ due to me not knowing I could shoot back.
The variation was nice, generated dungeon amazing, and perfect progression in terms of difficulty and items that upgrade your perks were nice too. Great work!