Hoop Stack – Color Sort Puzzle Game info Description: Hoop stack is a ring sorting puzzle game to keep you entertained for an hours. Water color sort puzzle games are no longer unique, that’s why here is a new concept in the sorting puzzle game with colored hoop stack.Mouse Controls Related posts: Fishing Deep Sea Simulator 3D Real Car Parking : Parking Master GTA Color Kit 3d Untwist Sky Roller: Roller Skate PLAY NOW!