Atomic Mouse is a talking animal superhero created in 1953 by Al Fago for Charlton Comics.

[4] The Grand Comics Database notes, "Overstreet has listed #53-54, but there is no evidence they actually exist.

[7] Writer Mike Curtis and penciler Charles Ettinger revamped the character in Shanda Fantasy Arts' SFA's Atomic Mouse, which ran for three issues published from 2001 to 2004.

[8][9] The same publisher issues the one-shot publication SFA's Atomic Mouse vs. Power Jack in 2009.

In that microscopic realm, Professor Invento gives U-235 pills that grant Cimota superpowers, which he uses to fight for justice against the evil Count Gatto.