While “Bat Bomb” may sound like a weapon Batman might use, it was actually an American World War II design. And, yes, real live bats are involved. Essentially, bats were put in a canister with small bombs strapped to their chests. The canister would be dropped over a city, in this case, a Japanese city, and would release the bats. The bats would fly all over the city and before long the bombs would go off, burning the city to the ground in every direction. The military tested the bomb and found it actually worked. However, more tests were canceled as resources were redirected to the atomic bomb.