Developers Dotemu, Lizardcube, and Guard Crush Games announced today the Streets of Rage 4 Mr. X Nightmare DLC is coming later this year.
The new DLC will include three new playable fighters along with Survival mode. In this new mode, players will test their skills to the max. More info about this mode will be provided soon.
Also new in the upcoming DLC is the ability to build your own fighting style even with new moves with a character customization feature.
New original music by composer and arranger Tee Lopes, whose work has appeared on Sonic Mania and League of Legends, will also be included in the DLC.
The trailer introduces Estel Aguirre as one of the three new playable characters. The other two characters have not been revealed yet.
Besides the Mr. X Nightmare DLC, a free update will come with the New Mania+ difficulty level, a new color palette feature, as well as “an in-depth training system.”
[Source]: Lizardcube: Streets of Rage 4 – [Archive].