How do you get the skull ball in the dune jump game?

That’s the ghost not skull

How long? I tried it for about 5 minutes still didn’t work.

You have to set your phone down and not move it at the start of a new game.

Just sit there with your phone down on a flat surface you can tap the screen just don’t start it.

Don’t start the game and don’t do anything for 3 minutes.

Before you start, while the instructions are still on screen, don't touch your screen or move your phones for a full minute.

Close the app then open it AND don't touch the screen at all for approximately 1 min. I just did it.

We have a guide for this: https://www.appgamer.com/dune/strategy-guide/how-to-unlock-the-skull-ball