Cartoon Mouse

Cartoon Mouse is a mysterious cartoon cryptid from the Trevor Universe.

Personality
He is more shy and friendly than Cartoon cat or Cartoon dog, but still works for them. he doesn't like the fact that cartoon cat and cartoon dog kill and eat people, but is too afraid to say anything, especially since cats eat mice. He actually tries to help people when cartoon cat isn't watching, and sometimes it works. He's also too scared to quit his job with cartoon cat because he's afraid he might get himself eaten. He's not that strong, so he can't really fight back against...anything...however, that all changes with his killer form, but that's a story for another time.

Origin
Before a cartoon creature, Cartoon Mouse was a Lab Rat named Bartholomew (possibly in russia or germany by the name) who was injected with some of Cartoon Cat's DNA by some scientists, turning him into Cartoon Mouse. He now holds a grudge against those scientists. As such, he won't stop Cartoon Cat from killing scientists, and might even help sometimes! You can see what happened from two burnt lab entries that were salvaged from the burnt down lab (see Gallery).

Trivia

 * Cartoon Mouse looks a lot like Mickey Mouse, especially because of the ears.
 * Cartoon Mouse really likes cheese and enjoys practicing mazes.
 * He used to have a tail, but it seems he doesn't anymore. The two most popular theories are that it was either bitten off by Cartoon Cat or caught in a mousetrap.
 * When he gets too scared, he'll play dead.
 * He doesn't have FULL control over his powers, so he ends up constantly getting into problems, sometimes problems he can't get himself out of without help.
 * His ears work just like mickeys, where no matter which way he is facing, they'll always be facing towards you, even if there's multiple people in the room viewing him at multiple angles. Nobody knows how he does this, not even himself!
 * He kind of works like long horse, coming to you and warning you about disasters, but for cartoon mouse, the disaster is cartoon cat.
 * When he comes by, you might hear Steamboat Willy.
 * When he is in killer form, he plays this, https://www.youtube.com/watch?v=EKLxUpLrR0g
 * There are rumors going around that some scientists are working on a way to get Cartoon Mouse back to the lab. Nobody knows for sure if these rumors are true, but it is said that if they are, the scientists are taking a more mechanical approach.

Source's (Only some images)
https://www.reddit.com/r/TrevorHenderson/comments/hmyq9a/did_it_come_from_the_tv_or_the_trash/

https://www.reddit.com/r/TrevorHenderson/comments/hmyjup/my_house_is_infested_with_rats_first_post/

https://www.reddit.com/r/TrevorHenderson/comments/j5cs0j/cartoon_mouse/

The Cartoon Rat.