Revival, also known as respawning, is an action where a dead character comes back to life. In Season 1a, you were able to revive. This was not used in Season 1b, though. Respawning was removed with the introduction of Necrola and her Necromites, which means that if you die, you will become a Killer Robot. Revival returned temporarily in The Room of Geometry Dash, to acommodate with the original Geometry Dash. Reviving will return fully in Season 2.
- Veterans (characters who stayed for more than 1 season, ex. Jelo) are able to revive, even in Season 1b, which explains Jelo's inability to become a Killer Robot.