Just a heads up, an impressive new 4-player beat'em up/brawler project is in the works. Although it's a Kickstarter, the work done so far looks quite impressive compared to most modern beat'em ups I've seen. Beyond the excellent animation of the characters and enemies, the backgrounds are quite alive with oodles of animation, color, and some bits of parallax scrolling.

https://www.kickstarter.com/projects...uad/jitsusquad



If this sounds interesting to you check out their Kickstarter page. Some interesting tier rewards too like a custom arcade stick, music box, and even a customized arcade machine!