Thanks a lot for the feedback :)
MUSIC:
Yeah, the music is very simple, I didn't want to spend too much time on it. It's created with https://musiclab.chromeexperiments.com/Song-Maker. The easiest way to create music ;)
A special feature about the music (I guess nobody noticed) is, that the music stops/start at the same point when switching between game/level complete/game over screens. Making it a smooth transition.
END:
The game is endless, I wanted it this way. The plan was to create a online highscore so the players could challange each other. There are acutally 13 levels (each level increase the gold/fake coin). The 13 level has 10 Goldcoins and 8 Fakecoins and will repeat forever! The numbers are fix, so if you figure out how much fakecoins are in the current level, there is a hugh advantage ;)