Seeing Stars

@MekaSage - I can't even get going - is there a QUICK TAP or tricks?

@Meko Guy - the start requires the Star Pass technique. I tried to describe it in my first comment, but I'm not sure I explained it clearly.

These screenshots should help:

Spoiler: Screenshots and explanation

1) At the start of the level B can't pass the metal block (i.e. normal behavior).

2) Lower the slider so the star attached to the rail hits the metal block.

3) As long as the rail that previously held the star is lined up with the metal block, B effectively doesn't see the block and only sees what's below it. If you tap on the block or beyond it B will attempt to follow path as B sees it, ignoring the "invisible" block and climbing over it.

Note that if you move the slider so that the rail that held the star is no longer lined up with the metal block, the block will become visible to B again and B won't be able to pass it.

So aside from the opening move which isn't intuitive one can also win with a quick tap. I needed to use my phone to perform the quick tap as I don't have two mouse pointers. With a quick tap, B can get up on the auto slider and then drop the first ball. I didn't need to get R on B like your spoiler for @mastersifu as that star can be collected with the R or B on the round slider and a quick slide. I did wonder why L walked over the fence but figured something was hidden....

@Meko Guy - the Star Pass effect is also responsible for L crossing the fence. When the top ball comes to rest on the fence it's leaning on it on the side that originally had the star. For some reason the combination of the fence being on a slider and the star being on a moving object makes it so that L and R bots will walk on objects they normally wouldn't.

Thanks for playing and commenting!

Thanks for playing, @delator77 and @Pratik Bhalerao!

a very interesting effect when the stars are collected by moving objects. I think you did everything perfectly. compactly beautiful and had to be thought about.
glad that players will also learn something new for themselves

Thanks, @Mr Lemon!

Ha ha ! Was trying every which way to get B over the first block. Fun level with some neat features!