Streets of Rage 4 is just a great game. With the amount of characters out the gate, and then all the unlockable content including the throwback characters from the previous 3 games. It's definitely one to own, and if you don't yet, it is 50% off at the time of this posting. The Mr. X Nightmare DLC is also 50% off, so what I'm telling you is to go get it. You will not be disappointed.
Out of nowhere, the gods at Dotemu, Guard Crush, and Lizard Cube has given us a free update, with over THREE HUNDRED improvements across all platforms. The trailer below shows off some of these new features, like co-op moves, character balancing, and a new custom survival mode. The absolutely insane amount of patch notes can be found, though we can't link it here. It's a downloadable file. Check this out below, then hit those streets. 4-player Online please? PLEASE?