The Really Really Incredibly Destructive Machine is a machine designed and owned by Father and an object in Codename: Kids Next Door. It the most powerful machine ever used by the Delightful Children From Down the Lane and the only one that hasn't been destroyed.
The Really Really Incredibly Destructive Machine is the most destructive weapon used by the Delightful Children From Down the Lane and has never been destroyed. It has the appearance of circular disk with holes on four metal legs. The machine has metal tentacles and numerous weapons. It has a giant fly swatter and flaming chainsaws. It also can shoot fire balls and has shielding to protect it from lasers.
It made it's first appearance in Operation: G.R.O.W.U.P. The DCFDTL asked Father for permission to use it against the KND. They used it to destroy Numbuh's 3 H.I.P.P.I.E.-H.O.P. and stop the treehouse defense grid. After they successfully bested the KND, used the machine to destroy the Sector V Treehouse.
The Sinister Felines From Atop The Litterbox used it Operation: H.A.M.S.T.E.R. They used the machine crash the Hamster party and capture them so the cats could eat them.