Zap Them Both

@Labyrenight

That's up to you.
But author @P_simorf already given optimal move.

@Pratik Bhalerao yes ofc. it's because I finished it before @P_simorf telling the optimal way.

@Labyrenight
Cool!

Compact and devilish. One frustration- it Took a good few tries to get R to fall forwards.

This one was a bit of a challenge, but I should have

Spoiler

gotten a clue from the star on the top area as to where B has to stand to zap R bot !

Excellent and exciting level, I always enjoy it when B is in Zapper mode