From "Pac-Man X!"

Razan and Pac-Man (with the help of Toru & Miru) create some new camera drones to figure out Ghalia/The Ghost Witch's next scheme. These drones have the ability to camouflage themselves by turnin' invisible and can attach to any surface. Named by Pac himself, these drones are known as "Chomp-Chomps"! Also, just so you know, it was also Pac's idea to make 'em look like dogs.