The difficulty setting is ridiculous. This game is way too hard even on easy difficulty because the only difference between difficulty settings is whether or not you have to play blue and orange keys and how many mistakes you can make. But the speed at which you have to press the keys is always the same no matter what difficulty you choose and the time window in which you have to press them seems to be the same as well. Easy difficulty should definitely play at slower pace than the others. Otherwise you should rename the difficulty settings to "hard", "ridiculously hard" and "insane".
This game would be much less frustrating if you could move the paddle from one corner to the other with only one key. For example: left arrow = paddle to the left corner, up arrow = paddle to center, right arrow = paddle to the right corner
Luck driven games suck. Luck driven games where you have to restart 30 times to get at least some chance to win suck hard. Making luck driven games where you have to restart 30 times to get at least some chance to win which take 30 seconds to restart because of pointless animations which cannot be skipped should be outlawed.
It would be nice if you could equip items in the shop and sometimes it would really help if you could cast heal outside battle. Anyway, it's a great game with great improvements from the last version.