Janitor

By reading the comments of @ridgerunner , I realised I have added one block which created a shortened gameplay. I corrected it.
I reposted it.

Spoiler: Video solution

Played the previous version and can't find the change. I ended up playing the intended solution as I saw no other way. It was great fun finding it, step by step. Some balls follow paths I initially didn't understand. The mechanism that enables the path to the final ball did trigger earlier in two cases, but at those points I had no path back for B. That threw me off for a bit, but the intended solution felt clear.

@Block builder Thanks for playing my friend. I think I managed to avoid shortened gameplay and now I think it is quite extended now. In previous version, the order of gameplay changed a bit, which @ridgerunner mentioned in the comments earlier. So I removed it.

Perfect level, it was very fun to unravel the logic of the gameplay. There was a moment when I thought I had found a small shortcut but no, my path led to a point of no return so no problem. I would also like to highlight the very careful designs you build. Thanks my friend @Nathan Sabari great job!

@delator77 Thank you thank you so much my friend

L bot gets stuck if your not fast enough. There's a stack of stairs it tries to climb and there's no way to get it unstuck.

@Bombz Yep, it's a trap, my friend. B do not have to be fast enough, there is a way. I have uploaded video solution, it'll help

@Nathan Sabari I managed to get to the end, you do have a bit of a window to catch the L bot, but it is kinda tight. I had to watch the solution after my second attempt because I didn't notice some of the balls, and some of the go in the wrong place if you do it out of sequence. It's not very straightforward, but if I knew how to rate I would probably give it 3 stars, mostly because it's not very easy for me to figure out.

@Bombz Thanks for playing my friend . Yes order of gameplay is important here. Trial and error works, but hey thanks again attempting.

great level with some nice planning. I had to repeat multiple times as i didnt' quite understand something.

However, be careful as i found a short cut. No need to redo the level. I say zappers are very effective to stop a potential level hack or shortcut.

Spoiler: shortcut

@Propesyonal Thank you for playing friend . By the way, the move in your video, is a trick, Boogie Bot, I think. It is a very hard trick, but you have mastered it. But I have built this level a no- trick level, anyway glad you liked it my friend .