Brutal but fair. I really would have preferred controller support (unless it was just my particular controller not mapping). Trying to understand how to play against the snake took a minute. I was not sure what was exactly killing me on the horizontal attack. It happens so fast and the red blood bubbles kinda blend into everything so I thought just jumping and landing on the snake was killing me for a while. Didn't even see the mouse fly at light speed into the spikes to explode into a red mist.
Had fun. Bosses are always some of the coolest and most interestingly designed fights, these did not disappoint.
Keep up the great work!