Streets of Rage 4's Mr. X Nightmare DLC is live on all platforms, and it brings a ton of new content to the game, including three new characters, customizable moves, a survival mode, and many balance changes. The new characters include Estel Aguirre, Max Thunder, and Shiva, all of whom served as bosses in the base game. The latter two are also characters from previous Streets of Rage games. [Update: Switch players may be unable to get the DLC for a period of days, due to an issue.]

　　Survival mode is the other major addition that Mr. X Nightmare brings to the table. Players can select perks for their character and then fight to see how long they can last. Additionally, all characters now have selectable special moves that they can swap out to find a moveset that works best for them.

　　Along with the Mr. X Nightmare DLC, which costs $8, there is a free update for the game that adds a harder difficulty, an in-depth training mode, new color palettes, and a raft of balancing changes. For example, default Axel has gotten a major buff that should help him compete with top-tier characters like Adam Hunter. For more details, check out the patch notes below.

　　Streets Of Rage 4 Mr. X Nightmare DLC SteamMicrosoft StorePlayStation Store

Streets of Rage 4 Mr. X Nightmare DLC Patch Notes

　　Fixed retro characters' soundAdded a new pickup star soundReworked weapon soundsAdded a sound (and screen shake) when falling into a holeGameplay:

　　Reduced player fall damage from 30 to 20Vault jump now causes a longer stunALL characters:

　　Added better jab hitbox to match animation and work at close rangeWeapon throw now hits at close rangeALL SOR1 characters:

　　More invincibility frames after their star moveALL SOR2 characters:

　　Faster jumpSOR2 Blaze:

　　Combo is now faster and does more damageAdded wallbounce property on elbowBack attack now has an extra bounceSpecial moves now cost less healthBlitz move now makes you invincible and has better depthDefensive special hits off the groundStar move has better hitboxesSOR2 skate:

　　Defensive special now hits off the groundSOR2 Axel:

　　Defensive special now hits off the groundFixed star move not recovering green healthBlitz longer distanceLonger jab hitboxSOR2 Max:

　　Slightly faster walk speedBigger grab rangeBlitz longer distanceSOR3 Axel:

　　Star move now recovers green healthBlitz hits off the groundBetter combo hitboxesFaster run speedSOR3 Blaze:

　　Better charge attackAdded wallbounce property on elbowCombo is now fasterBack attack now has an extra bounceDefensive special can now hit off the groundSpecial moves now cost less healthOffensive special has better juggle properties and can wallbounceSOR3 Skate:

　　Blitz does more damageDefensive special hits off the groundOffensive special now costs less healthBetter jab hitboxSOR3 Shiva:

　　Better star move hitboxesBetter jab hitboxSOR3 Zan:

　　Better jab hitboxCan now pick up food while holding energy orbSOR4 Axel:

　　Longer jumpStar move has bigger damage and longer active framesAir special has shorter recovery, bigger depth, bigger damage, more active framesAir kick combo does more damageCombo does more damageBlitz does more damage and ignores enemy's weightBack attack has better wallbounce propertiesHeadbutt is invincibleSOR4 Adam:

　　Air special does 2 more hitsSOR4 Cherry:

　　Blitz can not fall into holesSOR4 Floyd:

　　Better jab rangeBetter hitbox on comboAdded weapon specialsEnemies:Karatekas:

　　Can not parry thrown bodies anymoreLonger grab struggle timeRaven:

　　Takes a little damage when guarding