So... A game that actually isn't my favorite, just the favorite amongst things that I've never seen mentioned anywhere?
Shit... Even the most obscure games I know about, I know about because someone else mentioned them.
I guess I'll have to go with Fightin' Herds? It's one of the few games I have that I bought entirely on the screenshots from the store page and I've never seen anyone mentioned it ever. In the simplest explanation: It's a 2D side scrolling fighting game with animal characters designed by Lauren Faust (the creator of MLP: Friendship is Magic). It's not a very good game. It's extremely cheap and unfair, like way more than any other fighting game I've played. The adventure mode is also kinda shit because it takes the already bad fighting mechanics and makes you do platforming and Smash Bros style horde fights against multiple opponents and the controls just aren't really designed for that shit. I haven't even gotten 25% through the story mode :(
Actually... Matt Muscle should be told about this pile of dogshit for his Worst Fighting Game Ever series... π€
I don't know what you're on but the game is widely considered to be very solid and surprisingly great despite the whole MLP connection. There was also a lot of praise for the story mode and disappointment that it never got finished. It has high execution combos and some deeper mechanics.