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 PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs