The "Mouses" were supposed to be a bunch of lab-mice who, through numerous bizarre science experiments, had all manner of whacky mutations/super-powers. I didn't actually do any cartoons about them, but this was one of two that were about normal mice (who called themselves "the Mouses"). The other cartoon was pretty lame and has been long-lost. I won't put any effort into finding it again...
The mutant lab-mouses were actually characters from a computer game I made in QBasic from December 1996 to February 1997. I must concede that the game "Mouses - escape from the lab" was kinda like "Lemmings", in that you had to use your rodents' mutant abilities to escape from a whole heap of whacky puzzles. (I should put the game up on this website someday, but then somebody like Nintendo will probably rip me off and make bajillions.)