The character animation in Mutant Mayhem really wasn’t as bad as you’re making it sound. It’s stylised, but I think that works in its favour, evoking a kind of comic-book look to it.
And the 2D cartoon spinoff was also perfectly decent:
https://www.youtube.com/watch?v=SUnHJ7EW93M
Again, though, there’s nothing indication the Netflix series would look anything like either of these.