Shin Mugen 2: Infinite Worlds Crisis

Shin Mugen 2: Infinite Worlds Crisis (風無限2無限の世界の危機, Shin mugen 2 Mugen no sekai no kiki) is a crossover open world action-adventure role-playing video game co-developed Compile Heart, Idea Factory, Nippon Ichi Software, Gust Corporation, Banpresto, Type-Moon, Tamsoft, Arc System Works, and Atlus.

It was released on August 3, 2024 for PlayStation 4, PlayStation 5, Xbox Series X|S, Nintendo Switch, and Microsoft Windows, the game serves as a crossover between the 2 crossover games, Shin Mugen and Project X Zone 3: War of Infinite Worlds.

A sequel called Chou Super Robot Wars U was released worldwide for PlayStation 4, PlayStation 5, Xbox Series X|S, Nintendo Switch, and Microsoft Windows.

Gameplay
Just like the Ultimate Edition of Project X Zone 3, the gameplay has a more traditional hack-and-slash/beat-em-up third-person shooter orientation with RPG elements adapted straight from the Project X Zone 3: War of Infinite Worlds and 2.5D graphics incorporated into the environments, characters and animations in the same vein as Dragon Ball FighterZ.

However, some elements from the Project X Zone 3: War of Infinite Worlds version are retained, such as the use of Pair and Solo Units, Mirage Cancel, Cross Fusion Multi-Attacks, open-world multiverse-exploring and quest unlocks.

The game also introduces Ability Cards that modifies or upgrades moves, buffs and stats of units, as well as a loot crate system that contains Ability Cards, weapons, items, etc. that are given at random and offered after completing quests or others.

Summary
3 months after the events of Shin Mugen, Fegelein notices a mysterious massive powerful evil force is sweeping across the corners of the Multiverse without any warning.

Fegelein used a crossgate and met Adam Pines, who was reported about the ongoing crisis and told a group of soldiers to recruit various heroes from all across the Multiverse, saying that “it's time.”

By a strange coincidence, two heroes, Takeshi and Yurina, get caught up in the Infinite Worlds crisis.

Pair Units
The pair units are controlled by the player by means of travel and combat. The player uses a pair unit to travel to different locations, collect items and weapons, partake on missions and quests and fight on battles. When the pair unit reaches enough experience points, the two characters in that pair unit are leveled up simultaneously.

Characters denoted with (*) symbol are initially an enemy unit.

Solo Units
Characters denoted with (*) symbol are initially an enemy unit.

Bandai Namco

 * Kamaitachi (Namco X Capcom)
 * Katana (Namco X Capcom)
 * Aku Tengu (Namco X Capcom)
 * Gou Tengu (Namco X Capcom)
 * Akatana (Project X Zone)
 * Byakuya X (Project X Zone)
 * Sword (Project X Zone 2)
 * Blue Hatter (Project X Zone 2)
 * Red Hatter (Project X Zone 2)
 * Orange Hatter (Project X Zone 2)
 * 18 (Project X Zone 2)
 * 88 (Project X Zone 2)
 * 15 (Project X Zone 2)
 * 55 (Project X Zone 2)
 * 12 (Project X Zone 2)
 * 22 (Project X Zone 2)
 * Demon (Project X Zone 3: War of Infinite Worlds)
 * Shadow Demon (Project X Zone 3: War of Infinite Worlds)
 * Demon Commander (Project X Zone 3: War of Infinite Worlds)
 * Skeletal Minion (Project X Zone 3: War of Infinite Worlds)
 * Skeletal Mage (Project X Zone 3: War of Infinite Worlds)
 * Flesh Eater (Project X Zone 3: War of Infinite Worlds)
 * Abomination (Project X Zone 3: War of Infinite Worlds)
 * Horribler (Project X Zone 3: War of Infinite Worlds)
 * Terribler (Project X Zone 3: War of Infinite Worlds)
 * Infernal (Project X Zone 3: War of Infinite Worlds)
 * Abysmal (Project X Zone 3: War of Infinite Worlds)
 * Lesser Gargoyle (Project X Zone 3: War of Infinite Worlds)
 * Greater Gargoyle (Project X Zone 3: War of Infinite Worlds)
 * Hellspawn (Project X Zone 3: War of Infinite Worlds)
 * Hell Guard (Project X Zone 3: War of Infinite Worlds)
 * Baphomet (Project X Zone 3: War of Infinite Worlds)
 * Centaur (Project X Zone 3: War of Infinite Worlds)
 * Fire Hydra (Project X Zone 3: War of Infinite Worlds)
 * Satanic Horror (Project X Zone 3: War of Infinite Worlds)
 * Satanic Beast (Project X Zone 3: War of Infinite Worlds)
 * Satanic Winged Beast (Project X Zone 3: War of Infinite Worlds)
 * Death General (Project X Zone 3: War of Infinite Worlds)
 * Deceiver (Project X Zone 3: War of Infinite Worlds)
 * Destroyer (Project X Zone 3: War of Infinite Worlds)
 * Jailer (Project X Zone 3: War of Infinite Worlds)
 * Slave Master (Project X Zone 3: War of Infinite Worlds)
 * ISIS Soldier (Project X Zone 3: War of Infinite Worlds)
 * ISIS Suicide Bomber (Project X Zone 3: War of Infinite Worlds)
 * Jihad Terrorist (Project X Zone 3: War of Infinite Worlds)
 * Jihad Weapons-dealer (Project X Zone 3: War of Infinite Worlds)
 * Jihad Sorcerer (Project X Zone 3: War of Infinite Worlds)
 * Jihad Admiral (Project X Zone 3: War of Infinite Worlds)
 * Caliphate Warrior (Project X Zone 3: War of Infinite Worlds)
 * Caliphate Gunner (Project X Zone 3: War of Infinite Worlds)
 * Caliphate Cavalry (Project X Zone 3: War of Infinite Worlds)
 * Caliphate Artillery (Project X Zone 3: War of Infinite Worlds)
 * Anti-Christ Infantry (Project X Zone 3: War of Infinite Worlds)
 * Anti-Christ Special Marine (Project X Zone 3: War of Infinite Worlds)
 * Anti-Christ General (Project X Zone 3: War of Infinite Worlds)
 * Anti-Christ Combat Tank (Project X Zone 3: War of Infinite Worlds)
 * Anti-Christ Mechanical Walker (Project X Zone 3: War of Infinite Worlds)
 * Magma Catapult (Project X Zone 3: War of Infinite Worlds)
 * Cult Worshiper (Project X Zone 3: War of Infinite Worlds)
 * Cult Blasphemer (Project X Zone 3: War of Infinite Worlds)
 * Necromancer (Project X Zone 3: War of Infinite Worlds)
 * Luciferion (Project X Zone 3: War of Infinite Worlds)
 * Hell Crawler (Project X Zone 3: War of Infinite Worlds)
 * Omicon (Endless Frontier)
 * Necron (Endless Frontier)
 * Book of the Dead (Endless Frontier)
 * Book of Judgment (Endless Frontier)
 * Defense Droid Alpha (Endless Frontier)
 * Defense Droid Gamma (Endless Frontier)
 * WR.Red-Heavy (Endless Frontier)
 * WR.Gold-Heavy (Endless Frontier)
 * Emerald Dragon (Endless Frontier)
 * Blackflame Dragon (Endless Frontier)
 * Goblin (Xenosaga)
 * Golem (Xenosaga)
 * Glare (Xenosaga)
 * Expression (Xenosaga)
 * Bugbear (Xenosaga)
 * 27-Series Asura (Xenosaga)
 * Armaros (Xenosaga)
 * Perun (Xenosaga)
 * Stribog (Xenosaga)
 * Svarozic (Xenosaga)
 * Mokujin (Tekken)
 * Tetsujin (Tekken)
 * Kinjin (Tekken)
 * Prototype Jack (Tekken)
 * Charade (Soul Calibur)
 * Chaox (Adventures of Valkyrie)
 * Sizath (Adventures of Valkyrie)
 * Robodian (Adventures of Valkyrie)
 * Honorian (Adventures of Valkyrie)
 * Dadatta (Adventures of Valkyrie)
 * Saibaimen (Dragon Ball)
 * Appule (Dragon Ball)
 * Ghost Warrior (Dragon Ball)
 * Cyclopian Guard (Dragon Ball)
 * Shadow Dragon (Dragon Ball)
 * Clone Goku (Dragon Ball)
 * Clone Vegeta (Dragon Ball)
 * Clone Gohan (Dragon Ball)
 * Clone Piccolo (Dragon Ball)
 * Clone Krillin (Dragon Ball)
 * Clone Tienshinhan (Dragon Ball)
 * Clone Yamcha (Dragon Ball)
 * Clone Future Trunks (Dragon Ball)
 * Anbu Mask (Naruto)
 * White Zetsu (Naruto)
 * Marine Member (One Piece)
 * Shocker Combatman (Kamen Rider)
 * Dai-Shocker Combatman (Kamen Rider)
 * Destron Combatman (Kamen Rider)
 * G.O.D. Warfare Agent (Kamen Rider)
 * Delzar Army Corps (Kamen Rider)
 * Riotrooper (Kamen Rider)
 * Leo Soldier (Kamen Rider)
 * Mole Imagin (Kamen Rider)
 * Masquerade Dopant (Kamen Rider)
 * Waste Yummy (Kamen Rider)
 * Stardust Ninja Dustard (Kamen Rider)
 * Kamen Rider Mage (Kamen Rider)
 * Elementary Inves (Kamen Rider)
 * Roidmude (Kamen Rider)
 * Gamma Commando (Kamen Rider)
 * Bugster Virus (Kamen Rider)
 * Zolder (Super Sentai)
 * Crimer (Super Sentai)
 * Mechaclone (Super Sentai)
 * Golem Soldier (Super Sentai)
 * Black Barmia Soldier (Super Sentai)
 * White Barmia Soldier (Super Sentai)
 * Gormin (Super Sentai)
 * Sugormin (Super Sentai)
 * Dogormin (Super Sentai)
 * Zorima (Super Sentai)
 * Crusher (Metal Hero)
 * Fightrow (Metal Hero)
 * Soldier Miracler (Metal Hero)
 * Gattuso (Tales of Vesperia)
 * Gentleman (Tales of Vesperia)
 * Beast Bear (Tales of Vesperia)
 * Egg Bear (Tales of Vesperia)
 * Hysteric Purple (Tales of Vesperia)
 * Hammer Golem (Tales of Vesperia)
 * Outbreaker (Tales of Vesperia)
 * Daybreaker (Tales of Vesperia)
 * Nightbreaker (Tales of Vesperia)
 * Predafish (Tales of Vesperia)
 * Gigafish (Tales of Vesperia)
 * Red Slime (Tales of Destiny)
 * Sorceress (Tales of Destiny)
 * Quox (Tower of Druaga)
 * God Arc Soldier (God Eater)
 * Zygote (God Eater)
 * Kongou (God Eater)
 * Ogretail (God Eater)
 * Cocoon Maiden (God Eater)
 * Gboro-Gboro (God Eater)
 * Dreadpike (God Eater)
 * Abaddon (God Eater)
 * Fallen Kongou (God Eater)
 * Fallen Zygote (Blaze) (God Eater)
 * Fallen Zygote (Freeze) (God Eater)
 * AIDA (Anna) (.hack)
 * Gigamouth (.hack)
 * Apititer (.hack)
 * Bugborn Alpha/Beta/Gamma (.hack)
 * Bug Queen Alpha/Beta/Gamma (.hack)
 * Fiend Menhir (.hack)
 * Statue Menhir (.hack)
 * Sphinx Menhir (.hack)
 * Goblin Mage (.hack)
 * Goblin Sage (.hack)
 * Olin Pack (.hack)
 * Strange Head (.hack)
 * Headhunter (.hack)
 * Headless King (.hack)
 * Phantom Soldier (Summon Night 3)
 * Phantom Summoner (Summon Night 3)
 * Phantom Summoned Beast (Summon Night 3)
 * Feydoom (Yumeria)
 * Xiliens (Godzilla)
 * Kilaak (Godzilla)
 * Space Hunter Nebula M (Godzilla)
 * Futurian (Godzilla)
 * Destoroyah (Juvenile) (Godzilla)
 * Destoroyah (Aggregate) (Godzilla)
 * Destoroyah (Flying) (Godzilla)
 * Millennian (Godzilla)

Capcom

 * Mettaur (Mega Man X)
 * Batton (Mega Man)
 * Pickleman (Mega Man)
 * Sniper Joe (Mega Man)
 * Masked Air Man (Mega Man)
 * Masked Wood Man (Mega Man)
 * Masked Metal Man (Mega Man)
 * Masked Crash Man (Mega Man)
 * Masked Needle Man (Mega Man)
 * Masked Hard Man (Mega Man)
 * Masked Top Man (Mega Man)
 * Masked Magnet Man (Mega Man)
 * Pararoid (Mega Man X)
 * Mettaur C-15 (Mega Man X)
 * Mettaur D2 (Mega Man X)
 * Gulpfer (Mega Man X)
 * Ride Armor (Mega Man X)
 * Gunbolt (Mega Man X)
 * Reaverbot (Horokko) (Mega Man Legends)
 * Reaverbot (Sharukurusu) (Mega Man Legends)
 * Mettaur Virus (Mega Man Battle Network)
 * Billy (Mega Man Battle Network)
 * Swordy (Mega Man Battle Network)
 * Scuttlest (Mega Man Battle Network)
 * Jammer (Mega Man Star Force)
 * Shadaloo Trooper (Street Fighter)
 * Enero (Street Fighter)
 * Février (Street Fighter)
 * März (Street Fighter)
 * Aprile (Street Fighter)
 * Satsuki (Street Fighter)
 * Santamu (Street Fighter)
 * Xiayu (Street Fighter)
 * Jianyu (Street Fighter)
 * Noembleu (Street Fighter)
 * Carol (Captain Commando)
 * Brenda (Captain Commando)
 * Wooky (Captain Commando)
 * Eddy (Captain Commando)
 * Z (Captain Commando)
 * Q-Bee (Darkstalkers)
 * Huitzil (Darkstalkers)
 * Gohma Howler (Asura's Wrath)
 * Gohma Stinger (Asura's Wrath)
 * Gohma Charger (Asura's Wrath)
 * Gohma Crusher (Asura's Wrath)
 * Gohma Squasher (Asura's Wrath)
 * Gohma Glider (Asura's Wrath)
 * Gohma Lasher (Asura's Wrath)
 * Gohma Striker (Asura's Wrath)
 * Gohma Carrier (Asura's Wrath)
 * Hunter Alpha (Resident Evil)
 * Ooze (Resident Evil)
 * Cerberus (Resident Evil)
 * Licker (Resident Evil)
 * Regenerator (Resident Evil)
 * Tricorne (Resident Evil)
 * Pincer (Resident Evil)
 * Plague Crawlers (Resident Evil)
 * Web Spinners (Resident Evil)
 * Hunter α (Resident Evil)
 * Zombie Elephant (Resident Evil)
 * Tyrant T-002 (Resident Evil)
 * Super Tyrant (Resident Evil)
 * Sargasso (Devil May Cry)
 * Marionette (Devil May Cry)
 * Bloody Mari (Devil May Cry)
 * Puia (Devil May Cry)
 * Sin Scissors (Devil May Cry)
 * Kyklops (Devil May Cry)
 * Mancer Demon (Devil May Cry)
 * Hell Pride (Devil May Cry)
 * Hell Envy (Devil May Cry)
 * Hell Wrath (Devil May Cry)
 * Hell Sloth (Devil May Cry)
 * Hell Greed (Devil May Cry)
 * Hell Gluttony (Devil May Cry)
 * Hell Lust (Devil May Cry)
 * Goatling (Devil May Cry)
 * Plasma (Devil May Cry)
 * Zombie (Ghosts 'n Goblins)
 * Red Arremer (Ghosts 'n Goblins)
 * Red Arremer Ace (Ghosts 'n Goblins)
 * White Arremer (Ghosts 'n Goblins)
 * Shielder (Ghosts 'n Goblins)
 * Vector (Star Gladiator)
 * Ampulex Compressa Giganteus Wasp (Dead Rising)
 * Zombie Poodle (Dead Rising)
 * Zombie Parrot (Dead Rising)
 * Velociraptor (Dino Crisis)
 * Pteranodon (Dino Crisis)
 * Compsognathus (Dino Crisis)
 * Imp (Okami)
 * Guardian (Okami)
 * Namahage (Okami)
 * Clay Soldier (Okami)
 * Blockhead (Okami)

Sega

 * Eggrobo (Sonic the Hedgehog)
 * Egg Gunner (Sonic the Hedgehog)
 * Egg Stinger (Sonic the Hedgehog)
 * Egg Lancer (Sonic the Hedgehog)
 * Fireworm (Sonic the Hedgehog)
 * Slicer (Sonic the Hedgehog)
 * Caterkiller (Sonic the Hedgehog)
 * Skorp (Sonic the Hedgehog)
 * Buzz Bomber (Sonic the Hedgehog)
 * Aero Chaser (Sonic the Hedgehog)
 * Crabmeat (Sonic the Hedgehog)
 * Asteron (Sonic the Hedgehog)
 * Robot X (Streets of Rage)
 * Galsia (Streets of Rage)
 * Nora (Streets of Rage)
 * Shiva (Streets of Rage)
 * Afinity (Bayonetta)
 * Enchant (Bayonetta)
 * Hatred (Bayonetta)
 * Sloth (Bayonetta)
 * Malicious (Bayonetta)
 * Accolade (Bayonetta)
 * Ardor (Bayonetta)
 * Resentment (Bayonetta)
 * Beloved (Bayonetta)
 * Fearless (Bayonetta)
 * Greed (Bayonetta)
 * Kouma Kagizume (Sakura Wars)
 * Kouma Sandan (Sakura Wars)
 * Kouma Ekisha (Sakura Wars)
 * Kouma Heiki Banrai (Sakura Wars)
 * Kouma Heiki Senkou (Sakura Wars)
 * Blanche (Sakura Wars)
 * Jaune (Sakura Wars)
 * Orange II (Sakura Wars)
 * Avalanche (Sakura Wars)
 * Thor (Sakura Wars)
 * Kyoukashinobi Kusa (Nightshade)
 * Kyoukashinobi Ouzutsu (Nightshade)
 * Kawarakitou (Nightshade)
 * Ebitan (Zombie Revenge: The House of the Dead)
 * Hedrin (Zombie Revenge: The House of the Dead)
 * Dark Serpent (Shining Force EXA)
 * Dark Stalker (Shining Force EXA)
 * Boar (Shining Force EXA)
 * Boar (Large) (Shining Force EXA)
 * Succubus (Shining Force EXA)
 * Dark Serpent (Shining Force EXA)
 * Master Medusa (Shining Force EXA)
 * Aggro (Yakuza: Dead Souls)
 * Hermit (Yakuza: Dead Souls)
 * Diptera (Yakuza: Dead Souls)
 * Arahabaki Prototype (Yakuza: Dead Souls)
 * Dolled-Up Dwellest (Resonance of Fate)
 * Safety Dwellest (Resonance of Fate)
 * Bazooka Dwellest (Resonance of Fate)
 * Tar Man (Resonance of Fate)
 * Vibrant Tar Man (Resonance of Fate)
 * Treasure Mimic (Resonance of Fate)
 * Golden Mimic (Resonance of Fate)
 * Blood Doll Chainsaw (Resonance of Fate)
 * Blood Doll Flame (Resonance of Fate)
 * Blood Doll Omega (Resonance of Fate)
 * Yeti (Resonance of Fate)
 * Heat Yeti (Resonance of Fate)
 * Mad Yeti (Resonance of Fate)
 * Morolian (Space Channel 5)
 * Rhythm Robot (Space Channel 5)
 * Kin, Kon & Kan (Space Channel 5)
 * Old Bermuda Gang (Dynamite Cop)
 * High Bermuda Gang (Dynamite Cop)

Third-Party

 * R.O.B. (Angry Video Game Nerd Adventures)
 * Ghost of Christmas (Angry Video Game Nerd Adventures)
 * Skylar (Angry Video Game Nerd Adventures)
 * Jack-O-Lantern (Angry Video Game Nerd Adventures)
 * Witch (Angry Video Game Nerd Adventures)
 * Flaming Skull (Angry Video Game Nerd Adventures)
 * Scotoro (Angry Video Game Nerd Adventures)
 * EeeTee (Angry Video Game Nerd Adventures)
 * Reaper (Kid Icarus)
 * Eggplant Wizard (Kid Icarus)
 * Chaos Kin (Kid Icarus)
 * Chariot Master (Kid Icarus)
 * Skuttler (Kid Icarus)
 * Aurum (Kid Icarus)
 * Cryogonal (Pokémon)
 * Fighter Risen (Fire Emblem Awakening)
 * Sorcerer Risen (Fire Emblem Awakening)
 * Archer Risen (Fire Emblem Awakening)
 * Revenant Risen (Fire Emblem Awakening)
 * Sage Risen (Fire Emblem Awakening)
 * Entombed Risen (Fire Emblem Awakening)
 * Mass-Produced Face (Xenoblade Chronicles)
 * M63 Harvester Unit (Xenoblade Chronicles)
 * M82X Melee Unit (Xenoblade Chronicles)
 * M83 Predator Unit (Xenoblade Chronicles)
 * Sentinel Mechon (Xenoblade Chronicles)
 * M85 Meteor Artillery (Xenoblade Chronicles)
 * Offensive Mechon Plus (Xenoblade Chronicles)
 * Offensive Seeker Unit (Xenoblade Chronicles)
 * M87 Prototype (Xenoblade Chronicles)
 * Ultranationalist Russians (Call of Duty: Modern Warfare)

Attacks

 * Unlike Project X Zone 3, AVGN doesn't summons Super Mecha Death Christ 2000 B.C. Version 4.0 Beta. Basically to avoid Religious Portrayal, making him unable to summons him, so in Infinite Worlds Crisis, AVGN was instead summons Glenn Radars from Akashic Records of Bastard Magic Instructor during his Solo Unit Attack.
 * Linkara summons Pollo, 90's Kid, Doctor Linksano and Harvey Finevoice from Atop the Fourth Wall during his Solo Unit Attack.
 * Angry Joe summons Other Joe and the Angry Army from the Angry Joe Show during his Solo Unit Attack.
 * Valkyrie summons Ultraman Geed, Mappy, M.O.M.O. from Xenosaga and Prince from Katamari Damacy during her Solo Unit Attack.
 * Kakashi summons Jiraiya from Metal Hero and AkaNinger Chozetsu from Super Sentai during his Solo Unit Attack.
 * Haseo summons Avatar Skeith during his Multi-Attack with Tokio.
 * Kamen Rider Den-O has five different Solo Unit attacks based on different forms/Imagin varied by the Attack Threshold Meter:
 * If the ATM ranges from 0%-20%, Den-O's Gun Form (Ryutaros) performs the Solo Unit attack.
 * If the ATM is 21%-40%, Den-O's Axe Form (Kintaros) does the attack.
 * If the ATM is 41%-60%, Den-O's Rod Form (Urataros) attacks.
 * If the ATM is 61%-80%, Den-O's Sword Form (Momotaros) attacks.
 * If the ATM is 81%-100%, Den-O's Climax Form attacks.
 * Kamen Rider Decade transforms into Kamen Riders Agito, Faiz, Kabuto and Kiva, while Diend summons Kamen Riders G3, Kaixa, Gatack and Saga in some of their attacks.
 * Similarly, Gokai Red uses his Gokai Change to transform into Red Falcon, OhRed, DekaRed and ShinkenRed and Gokai Silver into KibaRanger, KingRanger, DekaBreak and ShinkenGold, all from Super Sentai, in some of their attacks.
 * Miles & Franziska summon Dick Gumshoe and Kay Faraday from Ace Attorney in some of their attacks and The Judge in their Special Attack.
 * Phoenix & Maya summon Steel Samurai, Pink Princess and Missile from Ace Attorney during their Solo Unit attack.
 * Apollo & Trucy summon Mr. Hat and Ponco from Ace Attorney during their Solo Unit attack.
 * Strider Hiryu summons Amaterasu Okami from Okami and Lee Wong from Tiger Road during his Support attack with Hotsuma.
 * Unknown Soldiers 1 & 2 summon Mobile Suits Alpha & Beta from Side Arms Hyper Dyne during their Support Attack.
 * Saki Omokane summons G Kaiser from Tech Romancer and PTX-40A from Lost Planet during her Solo Unit attack.
 * Jin Saotome summons Blodia from Cyberbots and Gingira from E.X. Troopers during his Solo Unit attack.
 * Devilotte de DeathSatan IX summons Dave the Scientist, Xavier the Wizard and S-008 SUPER-8 from Cyberbots during her Solo Unit attack.
 * Segata summons Alex Kidd, Wonder Boy and Michael Hardy from Virtua Cop during his Solo Unit attack.
 * Ulala summons Opa-Opa from Fantasy Zone, Temjin from Virtual On, Amigo from Samba de Amigo and Crazy Taxi during her Solo Unit attack.
 * Takeshi summon Gran from Granblue Fantasy during his Solo Unit attack.

Other Cameos

 * In a cutscene during the Battle of Armageddon, Adam, Eve and Isaac announce the Great Resurrection and summon a "massive and grand army of the light from different worlds united for a common cause" to provide back up for every heroes of Shinra fighting the difficult battle. Among the heroes shown in the cutscene are:
 * All other Kamen Riders (#2, V3, Riderman, X, Amazon, Stronger, Skyrider, Super-1, ZX, Black, Black RX, Shin, ZO, J, Kuuga, Agito, Ryuki, Faiz, Blade, Hibiki, Kabuto, Kiva, Wizard, Gaim, Build, ZI-O, and all Secondary and Extra Riders.)
 * All Ultramen (Ultraman, Seven, Jack, Ace, Taro, Leo, Astra, 80, Tiga, Dyna, Agul, Gaia, Neos, Great, Victory, Cosmos, Justice, Nexus, Max, Mebius, Hikari, Hunter Knight Tsurugi, Zero, Zoffy, Father of Ultra, Mother of Ultra, Powered, Noa, King, Xenon, Zearth, Ginga, X, Orb, Geed, Rosso, and Blu)
 * All Super Sentai (Gorenger, JAKQ, Battle Fever, Denjiman, Sun Vulcan, Goggle V, Dynaman, Bioman, Changeman, Flashman, Maskman, Liveman, Turboranger, Fiveman, Jetman, Zyuranger, Dairanger, Kakuranger, Ohranger, Carranger, Megaranger, Gingaman, GoGoV, Timeranger, Gaoranger, Hurricanger, Abaranger, Dekaranger, Magiranger, Boukenger, Gekiranger, Go-Onger, Shinkenger, Goseiger, Gokaiger, Go-Busters, Kyoryuger, ToQger, Ninninger, Zyuhoger, Kyuranger, Lupinranger, Patoranger, Ryusoulger, and Kiramager.)
 * All Metal Heroes (Jaspion, Spielban, Metalder, Jiraiya, Jiban, Winspector, Solbrain, Exceedraft, Janperson, Blue SWAT and B-Fighters.)
 * Other Toei Heroes (Akakage, Robot Detective, Barom-1, Kikaider, Kikaider 01, Inazuman, Zubat, Nebula Mask Machine Man, Byclosser)
 * Super Robots (Giant Robo, Red Baron, Mach Baron and Daitetsujin 17)
 * Ambassador Magma
 * Iron King
 * Other Tsubaraya Heroes (Azteckaiser, Jumborg Ace, Izenborg, Fireman, Mirrorman, Gridman, Metal Kaiser and Koseidon)
 * Denjin Zaborger
 * Akumaizers Xavitan, Evil and Gabra
 * Garo
 * All SeiShin Heroes (Gransazers, Justirisers and Sazer-X)
 * All Dragon Ball (Son Goten, Trunks, Tienshinhan, Chiaotzu, Yamcha, Chi Chi, Mr Satan, Majin Boo, Videl, Master Roshi, Oolong, Puar, Marron)
 * All Neptunia (Noire, Blanc, Vert, Uni, Rom, Ram, Plutia, Peashy, Compa, IF, RED, Nisa, Gust, 5pb, B-Sha, C-Sha, K-Sha, S-Sha)
 * All Fairy Fencer (Tiara & Cui, Harley & Bahas, Pippin & Soji, Ethel & Karin, Galdo & Marissa, Apollonius & Seguro)
 * All Pretty Cures
 * Battle Hawk
 * Gaion Sigma
 * Silver Kamen
 * Henshin Ninjas Arashi and Shinsei
 * Hurricane Polymar
 * Kaiteijin 8823
 * Lion Maru
 * Dennou Keisatsu Cybercop
 * Tekkōki Mikazuki
 * Hiro (Spectral Force)
 * Autobots from the Bayformers films

Music

 * Opening Song: Chaos and Creation covered by Hatsune Miku & Kagamine Rin
 * Originated: NepNep☆Connect: Chaos Chanpuru
 * Ending Song: Neptune☆Sagashite by Afilia Saga
 * Originated: Hyperdimension Neptunia: The Animation

Note

 * Like Project X Zone 3: War of Infinite Worlds, the game's title, characters and story are inspired by the 1985 DC event comic Crisis on Infinite Earths.
 * Unlike Project X Zone 3:
 * The story of Shin Mugen 2 is considered by many to be the "lighthearted and comedy" in the Namco Cross series.
 * Every single Super Sentai characters names and unmorphed sprites are not altered into their Power Rangers counterparts in the North American and European release of the game due to the fact that a Sentai character (Kiramei Red) fight against a Power Rangers character (Zeltrax) as shown in the previous game.
 * The events of this game didn't linked with the Cross Crisis Series.
 * Doesn't feature multiple endings on it, allowing it to succeed to it's sequel.
 * To avoid controversies like Project X Zone 3, there is no Feminist Reaction (such as the portrayal of female characters in the game and their fanservice and alleged oversexualization) and Religious Portrayal, as the game have a Teen rating on it.
 * Since the characters from Cinemassacre, Channel Awesome, GTA, and Call of Duty retain their personalities, however it seems that all them doesn't swear or tried a middle finger like Angry Video Game Nerd, Nostalgia Critic, and Franklin Clinton for example. This was done to keep the game rating "B" and "Teen" since Christian Elumbaring was not like Sam Imbecile, it could been reason why Christian Elumbaring want to do this.
 * The game commerating a tributed to the 15th Anniversary of Trinity Universe.