without double jump how do you do this jump

Some strats can’t use double Jump

No.

I don't know why but in "Ball" desktop players don't use the strategies that Mobile players do. If they did I think they would have much better times than mobile players!

In Ball power ups is just using AD for skip a level

Power up is the bonus you can unlock with watching AD. There is an article in the rules which explain. Sorry for my bad English

After some train and practice, I think sub 2 is possible.

I think sub 2:05 is possible but not sub 2