From the Super Mario Wiki, the Mario encyclopedia

Noobis is a statue enemy in the Smithsnorian Museum of Wario: Master of Disguise. To defeat this enemy, Wario must jump on its head various times. The statue is shaped like a dog. Their name is a pun of Anubis, an ancient Egyptian god with the head of a jackal, and the popular gaming term "Noob", which refers to someone who is inexperienced or otherwise bad at a video game.

In-game description[edit]

All who torment dogs, or at least refuse to give them table scraps when they beg and look cute, will be cursed by this statue in the afterlife.