Usually in traditional puzzles with colored blocks, you set them on the field, trying to score more points. But in the game Blocks Puzzle Zoo, along with these actions, you will fulfill a noble and very important mission - saving animals. They are sitting in cages along the edges of the field. On the one hand, a prisoner, but on the contrary a key. In order for the master key to fall into the well and open the lock, and with it the door, build a solid line of blocks between them. If this happens, the cage will fly apart, and the animals will escape to freedom. Move through the levels, different surprises await you.