We can stand fully justified in denying the shear delights of flinging KI blasts via motion to younger siblings and the like because the mighty ratings board has decreed we can.
Dragon Ball Z is about a lot of characters being extremely over muscled, shouting a lot, pummelling in faces, destroying the beauty of the natural environment and firing energy blasts indiscriminately.
Naturally such a universe requires at bare minimum the mental maturity of a 12-year-old. You’d best start practicing your Kamehameha technique, which means ‘Turtle Devastation Wave’ in English. There’s no word yet on when Dragon Ball Z for Kinect will be releasing for Xbox 360 and Kinect.