In Code: LYOKO, "death" can mean three things:
- Deletion, as in permanent destruction of our heroes or Aelita.
- Devirtualization, an event that occurs if Odd, Ulrich, or Yumi lose their lifepoints in Lyoko.
- Regular death of a person, such as electrocution.
The only way to revive person back to life from the dead is to use the seven Dragon Balls (Earth Dragon Balls, the Namekian Dragon Balls, the Super Dragon Balls and the Black Star Dragon Balls) to summon the Eternal Dragon (Shenron, Porunga, Super Shenron and Ultimate Shenron).