Brain training - Move a Ball

Nabil wanted this educational toy.

So I bought it. Nabil could use some brain stimulation to be more focus. It sounds easy. Separate the tiny blue and orange balls into different spheres through the tunnel in the middle. This is how it looks.

These are my stressed out kids at a restaurant. lol. Nabil took it very seriously.

This was what happened [late] that night:

You guessed it right. NABIL did it. He was nearly fell asleep towards the end.