So I really liked the game after "win the game" on easy using three different characters. A few minor complaints: 1. it takes 4+ hours to beat the game, i.e. too long 2. not rewarding enough for winning the game. perhaps something permanent for the characters would be nice. for instance, if I beat the game on easy using Knight, I get a perma reward for Knight which I can use on medium/hard difficulty, and if beat the game on medium I get another perma reward!
Bug: I was using Knight and reached 4-11, then for no reason my character changed into Huntress with initial setup (as if the game restarted from the beginning, except I was still in world 4)