A mouse is a small rodent that can live on Planet Earth, Mobius and Yuria. Similar to rats, mice are considered as both pets and as pests. They are often characterised in fiction as great lovers of cheese.
Mice have appeared sparingly in Sonic the Comic. Tantrum the Mouse is the highest-profile example, accompanying Tails on a journey underneath the Spring Flower Zone. His mother is also, unsurprisingly, a mouse. Other mentions of mice appear in The Legend of the Golden Axe, with Gilius-Thunderhead revealing a taste for stuffed mice, and the Decap Attack universe, when Chuck D. Head witnesses mice ravaging a Slurp-A-Kin wearing hair-styling Cheese Mousse.