The graphics are very cool, cute heroine, it's a pity not to be revealed as a character) The gameplay is not very clear at first, but it seems like it turns out to be played. However, yes, it's really hardcore, time goes by very quickly. If we could make the initial levels easier, it would be better, I think. And the 50% limit is pretty strong, more space could be given.
The game is entertaining and enjoyable!