Irken PAK

A PAK is a metal shell-like device fused to an Irken's back, not only providing such useful tools as mechanical spider-like legs, a communicator, jet boosters, etc.—but also serving as an auxiliary brain, containing an Irken's very personality and life data. Because of this, an Irken cannot survive longer than ten minutes without it, and he or she becomes more and more uncoordinated and disjointed in said time frame. With the PAK, however, Irkens such as Zim, Tak, Skoodge, and the Almighty Tallest are able to make efficient use of its resources, in combat and/or self-defense.