Colonel Allen
Race: Human
Nationality: American
Gender: Male
Rank: Colonel
Occupation: Emperor Garuda's Minion
Debut: Ninja Gaiden Shadow

Colonel Allen was one of Emperor Garuda's henchman in Ninja Gaiden Shadow, appearing at the end of stage 3 as the stage boss .


A former military commander Colonel Allen was working under Emperor Garuda until his defeat by Ryu Hayabusa.


Colonel Allen uses his machine gun at hand in his fight with Ryu and fires it in two angles up and down depending on Ryu's location. He rushes towards Ryu while firing his machine gun if Ryu is on the ground. If Ryu is hanging on the ceiling of the room he fires it upwards while staying still.