The T.H.U.M.P.E.R., or T.E.D.D.Y.Z.O.O.K.A., is a teddy bear-shooting cannon manly used by Numbuh 3. It was first used in Operation: N.O.-P.O.W.U.H. against the Terrible Tutor. Here, the weapon required electricity to operate, and after the hamsters left the treehouse. Numbuh 3 was not able to use it when running from a pair of Ham Legs. In later missions, it can be used without an electrical source. It was seen used by Numbuh 3 almost all the time it was seen in the show, the only time it was seen but wasn't used by Numbuh 3, is by Numbuh 4 in Operation: T.A.P.I.O.C.A. when storming into Numbuh 2's room after Numbuh 2 activated the "Teen Alert" switch