(I am now in a rush to test as many games as possible to help, so please do not mind the cursory reviewing style.)
As I thought reading your answer on the constraint and seeing the captures, and as others also said, this is very reminiscent of Wario Ware — although with a clear (thematic) anime twist! The way you captured the Japanese way of silliness is great, including Engrish. Also, laughed at the ‘Are you winning son?’ meme. X) If this was Ludum Dare with the ‘Humor’ criterion, you would definitely get extra points there! ;)
As Phoque stated, way too hard to figure out what to do the first time, but this is the kind of game that is thought as requiring training, hence the score concept.
As Crazy Monkey 68, I think it is great to have managed to obey the constraint both in story and gameplay; you gave it some thought.
The only substantial criticism I could really think of would be that the concept is not so original since this is pretty much Wario Ware, but your twist about only locking/unlocking things still makes it a bit more personal.
Well done!
(By the way, just putting here that my game is pending until I get the submission form.)
PS: totally forgot this important point: controls are QWERTY-only instead of layout-independent (I have an AZERTY keyboard); this made it difficult for me to mentally map the keys to the mouse!