- "My shoulders bear the weight of all that Meca One has done. All that I can do now is try to prevent him from achieving his dark goals."
- ―Sensei Keiken
Keiken has long grey hair and wears a predominantly white uniform. He has a double-sided head, one side of which bears a stoic expression, and the other an angry one.
Before the first rebellion, he was one of the lead designers of the mining robots that later malfunctioned, becoming the Devastators.
- He uses the same hairpiece as Professor Dumbledore.
- He is the rarest figure in the Exo-Force theme, appearing in only 2 sets
|view · talk · editExo-Force minifigures|
|Pilots:||Sensei Keiken | Hikaru | Takeshi | Ryo | Ha-Ya-To | Hitomi | Tank Gunner | Skeleton|
|Robots:||Meca One | Devastator | Iron Drone|