At the beginning I thought about showing the controls the hole time, but then I've decided that it is part of the challenge.
My 12 year old nephew finished the first level in about six hours practicing (and his version of HeadacheFactory had no savepoints), so maybe the most people here are not part of the target group. ;-)
I'm a little surprised that the game slowed down on your Moto G. It has a "Quad-Core A7", right? There might be some optimising issues to be done...