Twin Runner - go forward

This game's goal is for twin to go forward without falling down.
There are two runners.
Runner who runs on upstairs and runner who runs on downstairs.
If you touch any where on the upstairs, upstairs runner will jump.
If you touch any where on the downstairs, downstairs runner will jump.
two runners (twin runners) must go forward and jump not to fall down.
Let twin runners go forward simultaneously with you fast touch and distance recognition.
Probably making twins run simultaneously will be not easy.
For twin runners, Go Go!
Twin runners, fighting!
Compare your score with other's in global leaderboard.