Some technical criticisms. Please make sure enemy projectiles are on a layer above all pickups, almost all of them are smaller than the coins and bonuses. The big red face that pops up to show me my hate bar is full is just distracting and obtrusive.
Who decided that the Hirudo should have AoE? It's way too fast so it can just run you down and circle you. One trait or the other please, fast or powerful, not both.
You know why level 42 is so hard? It's because there's so many fscking fires that it makes the framerate fluctuate and it's intolerable. I'd like an option to just turn the fires into an inanimate red block or something.
How the bloody hell are you supposed to beat 19 when they have a ton of mana right from the beginning? They're dropping fire and volcanoes on me and there's shit all I can do.
crosscrosscross was a bitch for me at first because I didn't know you could go off-screen without dying. Considering that you die when leaving the screen in most games, that kind of the opposite of game literacy. It would have been better to be introduced to the concept beforehand.
Friggin excellent game! Control is pin sharp as are the damage zones for the spikes and the player character is easy to keep track of at all times. Great music and polished graphics, 5 stars.
Tip for games like this: use your other hand to hold your keyboard still so it doesn't vibrate/shake :)