Onage is a major ally in the iPenguin series. He first appeared in iPenguin 3DS, and since then has become a popular character in the iPenguin series.
Onage is very calm most of the time, but is also short tempered. He usually tries to keep a serious attitude, but can get carried away with things when he is angry. He appears to be a good teacher, as seen in iPenguin 3DS when he teaches Speedy, Climber, Petunia, and Ana a new attack.