|User|| Ben 10,000 (Ultimate Alien)|
|First Appearance||Ben 10,000 Returns|
- In Latin, Contego means "to protect".
|Ultimate Ben 10,000||Ultimate Ben 10,000 in Ben 10,000 Returns used this spell to defend himself from Eon's time ray.|
|Gwen Tennyson||Gwen used this spell in Couples Retreat to stop Michael Morningstar from using mana.|
|Darkstar||Darkstar used this spell in Mystery, Incorporeal to close and lock the door to the college basement.|
- After using the spell Ben 10,000 said that when you hang around an Anodite for 20 years, you "pick up a few tricks".
- Contego was also a spell that was used by DC Comics heroine Traci 13 in the World of Flashpoint mini series.