Really annoying music.
The boosts are very poorly explained and costs in game money to buy them.
The in game music is seriously annoying. The sample quality is really bad, so it sounds like it is playing underwater, and there is no visible way of accessing a menu system to turn the €****** noise off.
And of course with it being Free to Play we the obligatory ads between levels. The only good thing to this is we get a short respite from the damn music. (It really is irritating)
As I said, run of the mill, okay if you’ve got nothing better to waste your time on. Just put ear plugs in first.