[Update]: Mr. X Nightmare DLC has now arrived and so far it's looking like it's quality stuff!

If you're looking for a reason to dive back into Streets of Rage 4, you'll be happy to hear that a brand new DLC is set to arrive this July 15th - Mr. X Nightmare. The rather appropriately titled expansion will have you enter a simulation created from the remnants of Mister X's brain, in which you will find a brand new Survival mode, three new playable characters, a character customization system, and naturally, a whole host of new weapons and enemies to test your toys against!

The way the Survival mode will work is fairly simple, though it does also promise a decent chunk of replayability. As you push through increasingly stronger waves of enemies you will be granted a choice of perks. These perks can be either purely positive or a offer a 'give and take' sort of deal, with the end goal being for you to create synergistic builds with which you can bulldoze straight through the toughest enemies Streets of Rage 4 can throw at you.

Combine all of this with procedurally generated waves of enemies and some fancy new combat arenas, and things should stay fresh and interesting for quite a long time. And even if you do master the game mode, there will also be weekly challenges to complete and subsequently brag about.

You can get a pretty good idea of what all of this looks like in-game, as well as get a peek at the new characters, through the recently posted trailer. Have a gander:

To learn more about the Survival mode, as well as how the developers even came up with the idea, you should also check out the latest blog post. Enjoy!