Strong gameplay, simple and cute graphics.  Visually I will argue that it did get confusing trying to tell when enemies were attacking while in the middle of damaging them and I will admit I did catch myself trying to get the EXP bar's star more than a couple times in the rush to collect experience.

Those are the only notable flaws I will state I found with the game, otherwise it's a firm enough gameplay loop but might be a bit too easy.  Arguably with the presentation though a lower difficulty threshold is likely expected.