Sixsix (Earth-68)

This is the version of Sixsix that appears on Earth-68, the universe owned by Dioga beta. He appears in the John Smith 10 franchise, John Smith 10: Final Fantasy and Ryder 10.

Dimension 1 (John Smith 10)
Sixsix appears as a bounty hunter sent by Vilgax to retrieve the Omnitrix. He teams up with Kraab, but they are defeated by John and Tetrax.

Appearances

 * Hunted (John Smith 10)
 * Knight's Temple

Galactic Battle

 * General Kevin

Distant Worlds

 * Incarcecon Breakout, Part 1 (alternate dimension) (cameo)

Omniverse

 * Atlantis
 * Outbreak (John Smith 10)
 * Water War

Dimension 777 (John Smith 10: Final Fantasy)
He originally appears briefly as an enemy. He later joins the heroes, along with Sevenseven. They become major supporting characters, along with their sister Eighteight.

Appearances

 * Through Grains of Sand
 * Old Rivals
 * Battle of the Mountain
 * Lifestream
 * Zombie Night
 * Healing (JSXFF)
 * Sister Ray
 * Invasion of Midgar (cameo)

Ryder 10
Sixsix appears with Sevenseven and Eighteight working for Khyber. They are later hired by Psyphon to attack Area 51.
 * Ride for Your Life Part 1
 * Ride for Your Life Part 2
 * Showdown at the 51 Corral