I got a little bugging feeling of enemies spawning too close and there is no time to react. The difficulty escalating too slow which I find it a little boring. The collectable object sometimes doesn't appear maybe because of a very long delay time? That what makes me feel about the game has too long waiting and wondering if I had to do something. The image indication showing the current ability can't be understandable on first glance and it took me a minute to know about what it is.
However, the gameplay is fun. The presentation and visuals are ok.