We have...Don't Rest Your Head, as DZttE suggests, Call of Cthulhu in all its many guises (Trail, Cthulhu Dark, maybe even Delta Green if you like your horror soaked in action), let's see, what else is there...
If you want something comedic, maybe straight action might be in order. I know of a system called
Wushu, which is great for action RPing and I've found works well even with concepts that might seem really overpowered on paper. You could take all those overblown fights from Sonichu itself and try to transplant something in there as a parody of that style, where everybody has a turn being ludicrous, especially when the game's mechanics itself seem set on making showing off worth it.
It might take some finagling, but how about
Dark Heresy? Same sort of unreliability of tapping into Eldritch powers, just replace "Psyker" with something suitable and call the Horrors of the Warp something else to match, same usually-doomed cast of player characters unless you're clever and lucky. Just replace your guardsmen, psykers, inquisitors and the like with CWCville's police force, Chus and things like that, or be hapless Jerkops, Jerkhiefs or something. I couldn't help you run a DH game though, I know nothing about the engine or how it's supposed to play except for its unpredictability. However, 1d4chan is a great place to look if you want to know about Dark Heresy, since they loves them some 40K.
As for my tastes, I'm an enormous fan of Cat because I like cats, it's really easy to teach and adapt the Advantage System, and really, John Wick himself said wherever you feasibly see cats dithering around, you can set a game. I can easily imagine cats having a really hard time living in CWCville and trying to carve out an existence, especially with the trollfanon of feral Sonees and Roseys making any stray cats look more like Nermal. But there's another side to it too, since Cat is supposed to be about cats being blessed with mythic powers to fight monsters that humans are totally unaware of. And since those monsters tend to feed off negativity, sloth, despair, jealousy and the like, well, you can tell why a cat would come here looking for a good brawl or two.
And there's one more game which I've never been able to find a copy of, which was a /tg/ homebrew called "Panic: the game of little girls running," inspired by survival horror games like Clock Tower. It's a shame I could never find the mechanics for that, because seriously, what's the most dangerous thing to be in CWCville but a boyfriend-free girl?
I'm still waiting for someone to explain how a Changeling version of Sonichu would work.
As for your question, hmmm...Changeling. I'm not too familiar with that, but that's one of the White Wolf games which works on d10 pools, right?
