Here is one problem, you need to destroy a group of blocks, which hang in the air and if you do not deal with them, they will explode and take so many lives innocent people. To destroy all the blocks that you will have is one small ball and a few platforms. You need to do so that the ball fell into the blocks, and then on the platform if you do not have time to substitute the platform, something very bad will happen, namely, you lose something you can destroy this terrible weapon. You must gather forces and explosives to destroy this!