7x4 - Dragon Ball Z: Dragon Box

One of a pair of heartless hunters shoots the puppy that Boo had taken as a pet with his rifle! Before the enraged Boo can take any action, Satan mops up the pair. Using Boo's abilities, the puppy is restored back to health. Just as everyone thinks the matter has been settled, Satan is shot by the resentful rifleman! Boo treats Satan's injury as an abnormal change starts taking place in Boo's body...