This game is a lot of fun to play, incredibly addictive, a nice combination between bullet hell and dungeon-like. The ball should be a bit heavier I think, which cause the player to move a bit slower, but it swings around harder and harder, clearing even more tons of enemies. That'd literally turn the ball into a wrecking ball. Also a health bar for the player would be great (insta death just breaks the flow a bit). And yeah you really get the difficulty right, I feel so thrilled crushing waves after waves of enemies!