it's really fun, we won using only mage then only mush then only slime, but winning using only the demon or spider or demon king was ganna take a very long time (forever long) so, didn't do it, but we won using the miner and ghost and demon king (using only the demon king for damage), then using only the miner and spider, only miner and slime, then found a bug that makes the imp invincible and killed the knight using only the spikes xd
but, if we hold the right mouse button while dying until we see the 'defeat' menu, next time the game start it'll be slowed, and in full screen mode the health bar is covered with the knight upgrades.
overall it was a really fun game, the art, the gameplay, the everything, it's incredible how you managed to make this in only 48 hours.