Air Steps : Tap 2 steps at once.

Details

Tap 50 steps of stair as fast as possible. Or Tap steps of stair as many as you can in 30 seconds.
Don't tap glass step. Otherwise you will fall down from stair.

You should tap 2 steps of stair at once when you see them at the same time.


1.50 Steps Mode:
Tap 50 steps of stair as fast as possible.

2.30 Seconds Mode:
Tap steps of stair as many as possible in 30 seconds.