Ultracow

Ultracow is an especially talented helperton with rocket feet that allow her to fly and a gun hand that's useful for everything except holding firmly onto objects. The gun is equipped with a freeze ray, can propel other characters at high velocity, and is a functional wallet. The outside is equipped with videochat screen labled as a "Cow-Moo-Nicator." She only says "mu", and only once per statement, but is always clearly understood no matter how lengthy and specific her intended message is.