×I get that you can push a double across a blue square without activating it.

But if the decoy goes on one of the plates on the left, then I'm one move short of exiting.
Or if the roaches all go on the left plates, I see no way of pushing one to 12,14.

×You activate the top-right plate first.

×You already worked out you can push the clone onto an activation tile and then immediately step off.

This is, of course, useful for getting one of your Beethros past the tile without stopping time. But there's something else you can do with this fact.

×Ah the ol' pushing the clone which pushes the roach trick...