Dragon Ball Z :What would happen if Cell fought Majin Buu after Earth destruction In Dragon Ball Z, a creature named Cell created by Dr. Gero, hosted a tournament called the Cell Games. If Cell had won his tournament he would’ve destroyed planet Earth. If Cell had destroyed planet Earth with a Ki attack. This would’ve been the first time the Earth was successfully destroyed(at this time period in the series). The destruction of the planet might’ve unsealed Majin Buu. If Majin Buu was unsealed then it would’ve probably eventually fought Cell.