From Sonic Retro
|Game: Sonic Labyrinth|
|Affiliation(s): Eggman Empire|
|Hits to defeat: 1|
They are tiny bots with blue bodies that roll slowly along the ground on their wheels, pausing occasionally to unfurl their ample tongues in a similar fashion to frogs or chameleons. Their name is derived from "pero-pero", which is a Japanese onomatopoeia meaning "to lick".