Position: Midfielder (Formerly Forward)

Nationality: American

Age: 31

Gender: Male

Height: 192 cm

Weight: 71 kg

Team: Sledgemamma

Yamma was the forward of Team Sledge Mamma and is the leader. He is considered one of the most formidable pilots in the league and gives a fierce intimidation to oppponents. An ill-tempered man who is willing to use underhanded methods, he is also skilled in knife fighting. Later, it is shown that Yamma holds a dislike for Takeshi because of his similarities to Cunningham. Yamma has also been revealed to be the oldest pilot in the IG-1, second only to Andrei during his brief return while Amy was out with an injury. Later, after losing to Team White Snow, he is kicked off the team. He was African-American in the original pilot microseries.