Locked Out

Clever solution. Some parts are trial and error, but most can be done in a stable manner once discovered how. R walking over the top ball was a bit scary, as the ball could be pushed up.

@Block builder - You are right about the ball being able to push up but in the intended way, R doesn't need to walk over that ball. Thanks for playing and commenting.

It's very strange and frustrating for me. After the failure on @Don G Rowe's level, I have been unsuccessful at completing this level now.

@hadi - Not a problem - I'm glad you played and made a comment
BTW, I can offer hints if you'd like, just let me know where you are.

@gmacpro I dropped all the balls carefully and I brought Zapper down again. But I was not able to steer Zapper to win.

@hadi - 1. So all the balls landed properly?
2. With B and R back on the lower level, was the mechanism Locked or still free?
3. Did R get a ball and B get the other?

Dang that was tricky and rewarding!

@kathryn rogers - Excellent for you, I'm so glad you got the reward. Thanks for playing and commenting - very appreciated.

:
though sometimes stubborn, the balls will always follow the law of physics and the game mechanics are well-thought-out

@square simple - Thanks for playing, commenting and rating.

I worked calmly and carefully on this level today. So I managed to find the right way. Thank you

@hadi - I'm glad you made it - not much ability was required just logic. Thanks again.

Spoiler

The mechanism used in the sliders was very interesting and special. It required more thought to understanding. Your levels also look special and innovative.

@hadi - Thanks

worth playing that's why I don't judge a level by its thumbnail