I found a weird glitch on one of the levels. lvl 19. get red wall mover with the right block, then collide the blue wall which is the first switch you hit in the left room into the red wall before it gets far enough to be in the way of the orange wall. position the right piece a little to the left of where the orange wall will come down, and at least partially above the red wall. get the green (it wont do anything) and then the orange with the left piece. as the orange wall comes down it will cause some sort of invisible force to push the right piece into (I mean inside) the red block. if you switch to the right piece and press RIGHT it will force the right piece into the left room. then both your pieces are in the left room, which doesn't help at all but it's kinda neat.
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