After learning how the door mechanic worked, I enjoyed this game. The sense of progression from being defeated in one hit to overpowering enemies was nice. I tried out both characters. The small variety they both added to the game was nice. I know the game is “endless”, but it would be nice if there was a completion condition. I guess defeating the demon is the end goal?
My favorite part were learning each of the unexpected power ups. I actually found an exploit with the “rapid fire” power up (enter the door with the power up active). This allowed me to get a very small cooldown and do something like this: