7.0
The only place where Riff the Robot is a slight letdown is with its energy system. It takes a while for things to recharge, although you can earn coins to buy refreshes. You can watch adverts too, but this option expires if you use it too often. It doesn't take much to burn through a lot of lives when you get to some of the harder levels. Despite that, Riff the Robot is still pretty fun and an amusing way to waste some time.
