Pas Chen

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Thanks to @Denis Nazin for playing the previous one and pointing out two shortcuts.
Thanks to @MekaSage also for playing the previous version, pointing out shortcuts and advising me throughout the testing phase.

Watch out for the hidden.

Spoiler: Tricks

Low ceiling.
Cancel tap.
R will need to miss and fall.

Spoiler: Video solution

Lots of options at the start so it was fun working out the gameplay. I used everything so I presume i have the designed gameplay. I was expecting a walk to the finish so the ending was a surprise. Timing seemed crucial so i was so busy waiting to tap that i have not been able to see what the ball does to make R move.

@ridgerunner Thanks for playing, commenting and rating! I've added the video solution in the first comment so you can go and check it out. For me, timing is crucial near the end where you have to

Spoiler

slide the mechanism to let R fall onto the metal wedge

I'm not sure which ball are you referring so maybe you can watch the video.

@mastersifu . The reason i had timing issues at the finish was because i did things in a different order at 5:15. I left R alone and pushed the top ball instead and then pushed the ball in the water which meant that after a second R walked away. The designed gameplay much better.

As always, very cool and very confusing gameplay. I went according to plan. But in the end, it seems to me, it is very difficult to guess about the lower slider (its mechanism is not visible, it is logically difficult to think of it, you can only guess).
Once I was unlucky - the ball that hits' B "and should roll up the stairs, did not roll down the stairs))). After restarting everything worked out.
Nice long interaction logic. Thanks for the level. Well done.

Oups. I finished (twice) the game after 10 seconds and one single move ... but the video solution is 6' long. I guess I found a shortcut ?...

Spoiler

You must wait for the 1st ball that falls to stabilize on the slider. Then move it up at medium speed: it might touch the star. CQFD

I can't rate the level as I am too lazy to fulfill the intended way

@Denis Nazin Thanks for playing, commenting and rating! As you can see, the start is just made for you. I changed the position of B so that you don't have to hurry at the start. I've discussed the issue about the hidden mechanism with @MekaSage because I too, think that it is not so obvious. Anyway, glad that you finished it!

@Valentin What?!! How did you do that? I can't really understand your spoiler, can you please do a video?

are you sure there is no shortcut?

@Labyrenight Shortcuts are inevitable, it depends on whether you want to do it as intended or you want to 'cheat'. So, can you tell me what shortcut you found? I will be grateful to you.

@mastersifu I cheated, on autopilot, because the trick wasn't listed.
may have been mentioned by the person who invented the shortcut before. I do not know.

@mastersifu
I had to learn how to do it but

Spoiler: Here is the video

I watched your VS : never in my life i would be able to win such a level

@Valentin I don't know what to say. But I think this shortcut is very clever. I'd never thought of it. And thanks for the video!

EDIT -

You never try, you'll never know.

@mastersifu I found it by luck. Pure luck. The only way I could win

It was interesting to see this one evolve!