Krypto Mouse
From superman.nu: Supermanica
This article is about Krypto Mouse. The term Krypto can also refer to Krypto the Superdog.
Krypto Mouse
Krypto Mouse is secretly Fuzzy, little Tommy Ewell's pet mouse, who grows large as a result of an experiment by Professor Egglehead and gains super powers but keeps his mouse personality. Krypto Mouse patrols Smallville for a time, causing some to confuse him at a distance with Superboy. Eventually, Krypto Mouse's abilities fade away and he returns to normal (SB No. 65/3, Jul 1958: "The Amazing Adventures of Krypto Mouse").