If you think of the IP that actually came close to dethroning TMNT, it was Biker Mice from Mars. The animated show lasted for three seasons before receiving a revival in the mid '00s. Additionally, it spawned an action figure line (complete with snazzy vehicles), comic books, and video games.

The show featured the three mice (Throttle, Modo, and Vinnie) and their arsenal of weapons, including various lasers and flares. However, you never saw any blood or firearms used, as it still needed to play nice with the network and all the rules. The program also had another connection to TMNT, as Rob Paulsen (the original voice of Raphael) provided the pipes for Throttle.

Anyway here you see both Charlene Davidson (human) and Carbine (mouse)

- Charlene Davidson, better known as Charley, is a female mechanic, and the best friend of the Biker Mice on Earth.
- Carbine is a character in the show. She is a General of the Martian Mice Freedom Fighters. She's also a trusted ally to Throttle, Modo, and Vinnie.

Both of these women are in a FBB contest to see who the most ripped female in the our solar system. Seem to be at a tie at this point.