This game right here is insane! hahhaa damn I mean this has the potential of Flappy Bird! Well done!
The difficulty starts of quite high, personally I found it really challenging to time the bounce, feels too rapid. Could make it so that the jump speed is parabolic, allowing player to time better. On top of that, adding a bit of minor visual feedback when the character touches the ground could be very useful too!
Keep up the awesome work, this has lots of potential, with a just a little more polishing I feel this can be a successful mobile game! Well done!