Pretty cool! Nice visuals, especially the sun/moon world effect.

Puzzles were decent but didn't rock my world.

I quite liked the boomerang though, with the "find the correct curve to pickup a string of orbs" mechanic, I feel like this could be expanded. You should look at the lums strings in Rayman Legends: string turns purple once you pickup the first orb, and if you picked them all in order (ie keep it purple) then you get a multiplier, kinda like finding the perfect line in a Tony Hawk level.