ok I gave this one some time thinking a theory might come to me but I could use a hint on this one, it's bugging me . I can only get one person to the exit... I believe I have found all secret panels but still am stumped.

Ash

Hi! I must have done something really weird because surprisingly I didn't have a problem with this one. All I did was get one boulder on peegue's side to block a ufo and then had him walk up to the reflectors and move one down until it couldn't be moved anymore. Stinky then stood on the pink button ...