As singleplayer, this game is super hard. The concept is very different from everything else and interesting. The particles could have come way slower at the learning phase of the game so that reacting in time for a beginner would be sufficient(maybe you could add some easier and slow music). Other than that, the game feels completed and polished. the visuals are simple and fitting. Moreover I am amazed you could put a level editor in this short amount of time. Great job!