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Ashish Patel Thanks, it's a new trick,it's difficult to figure it out.you had also a bit of luck

Nice trick. Had a little difficulty passing the third Zapper

Reaaaally clever trick. Kind of a climbing trick but with R Bots in the place!

@trids

Spoiler: hint

That's a kind of the climbing trick, but here that's R Bot who forces you to change your path to an unconventional one...

Nice new observation and great little level to demonstrate how to use the trick! I particularly liked how each of the three demos/challenges got progressively harder to specifically enforce the learning of the trick. The art and compactness of the level are great too!

My only suggestion would be to call the level and this trick something else such as "run around." We already use the term shortcut to imply solving a level in a way unintended by its author.

Spoiler: Explanation of "Run Around"

The exploit in this level is essentially yet another variant of the exploit of the path completion algorithm in the game. That is to say that B will always do his best to get to the spot that you've tapped him to go to.

In this case we need to exploit the fact that R can get in B's planned path and then B will have to find a way to run around R. Meko considered it as B taking a shortcut around R, and in a sense B is trying to compensate the fact that R has gotten in his way by taking the shortest route to the intended destination - and this includes overcoming single height obstacles, etc.

Since we already use the term "shortcut" in a level to imply finding a different (and often shorter) solution to a level from the one that the author intended, I think we should adopt a different term to describe the trick of forcing B to take an alternate route around R. Hence my suggestion of calling it the "run around" trick.