The second echochrome is all about light and shadow, with the Move controller being a flashlight. There are separate blocks, but if you shine light over them the right way, they'll form a continuous shadow on the wall behind. Then the little guy can walk along the shadow.

I found the controls on the first one fidgety. On the second the flashlight movements just feel natural.
Pioneer VSX-1018AH-K, PDP-5020FD, DV-79AVi
Axiom M22s, VP150, QS8s
Sony PS3, surround backs