I played probably for way too long, 25 minutes or so. I played with the necromancer spell, and enjoyed the jank more than I should have. there is a legitimate strategy on how your revived enemies push you around in a counter clockwise circle, and if you can get stuck in between them and the power ups you have a safe spot for a while. I really dont know what the left 2 upgrades do but I bought the middle one about 30 times. The right upgrade you can walk through which was kinda weird but it helps with making loops around the middle. I had to mute the sounds because it became unbearable when hitting a boss. The game doesn't really get harder at all just remains pretty easy