Housemon

Housemon is literally a giant house, and was a minion of the Dark Master Puppetmon. It appeared in the episode Ogremon's Honor. Puppetmon activated Housemon to battle the digi-destined when he lost his hammer and was forced in a corner. Technically, it is not a Digimon, but more rather a "toy" that Puppetmon made himself.

Digimon Adventure (manga)
In the TOKYOPOP adaptation of the anime series, Puppetmon's mansion was a digimon called Housemon. Housemon proved to be a powerful adversary driving the digidestined back. It was destroyed when Puppetmon was defeated by Metalgarurumom's Metal Wolf Claw. The other DigiDestined know that Puppetmon was defeated after his section of the tower disappeared.