To use this product, first, take out all the parts from the set. Then, start assembling the parts one by one to build the vehicles. After that, combine these vehicles to form the Boon Killer Robo. Remember, this is a model kit, so it needs some time and patience for assembly. When assembling, be careful not to lose any small parts. After you finish building your robo, keep it in a dry and clean place to avoid dust and damage. If you want to move it, hold it gently to prevent it from falling apart.