Hoop Stack is a classical puzzle game. The fun of the game is to solve the problem by classifying the colorful hoops. It will let you unconsciously immersed in the game. Hoop Stack, puzzle game, arcade game, kids puzzle, brain training, problem solving, relaxation, hand-eye coordination, spatial reasoning, colorful game, mobile game, strategy game, addictive game, kid games, easy to play, fun game, skill game