You can stack blocks to make your own building. There are several obstructions. You should overcome earthquake, cat, bomb. Your goal is to maintain the building height after disaster. There are 6 shapes and 3 material of block. weight, restitution coefficient, friction are different by material. There are total 48 levels. Also, You can make your own map. There are 3 slots to save your own map. This game is 2d graphic, blocks move by physics law.