Crane truck

So this is my first level on principia, I hope you like it :)
Controls:
_the three left slides of the monstro rc are for the extension.
_the A and D are for the direction of the truck.
_the silde on the right is for the lift of the arm (I am not sure how to say it ;) but you will understand once you will play the level)
_and the little rc control on the arm of the truck is use to control the opening/closing of the door where the balls are.


Enjoy! :)ࡑ