Just wondering if any game comes close? Dust doesn't really count because its not a co-op game. Dungeon Fighter Online is also a bad example because the game is pretty ugly. --- The only Vita games really worth getting: Gravity Rush & P4G Being unable to detect sarcasm and lies might be an early way to catch dementia
closest thing is probably Elsword, Chronicles of Mystara is more similar to Golden Axe --- "The easiest way to stop piracy is ... by giving those people a service that's better than what they're receiving from the pirates." ~ Gabe Newell.
It got added to steam a little while ago, if you never played it go check it out. Its similar in some senses such as the 2D graphics and fighting. Also there is up to 25 characters and some sort of stats to put points into, nothing too complex though. I found it fun when I played it on the xbox 360, but I never played it on the PC at all due to beating the game multiple times on the 360 when I used to play it.
It also does have same screen multiplayer for up to 4 players, you would just need to have multiple controllers to use for it, if a local coop game is what you wanted.