1st-Boss-Snail

Interesting idea, but one only needs to wait for the arm to knock B off behind the level, and B can walk on the white area around the level in complete safety.

What @Star Penguin said and one arm takes the fence with it

I can only echo what others have said. I would also add that the motion of these seemingly "random" mechs is actually patterned, and repeats exactly every time so long as the viewing angle doesn't change. So you just pick an angle with a view to the win block and tap it when you see an opening.

Thank you or whatever. @Don G Rowe @Star Penguin @Manoli . i have the idea of making this level suddenly. i don't know that how it take fence with it. it's all magic. haha whenever, i got to know that if we put the spinner things together like a hand, it just rotate. but after we put electrical suppliars on it. they become robotic and goes automatically. share this idea in your levels too. and to everyone . thanks.
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My english is not that great.