Playable Characters:

• Heroes
  • Avengers (First appearance)
    • Captain America (First appearance)
    • Hulk (First appearance)
    • Iron Man (First appearance)
  • X-Men
    • Psylocke
    • Wolverine
  • Spider-Man (First appearance)
• Villains
  • Magneto
  • Juggernaut
  • Blackheart (First appearance)
  • Shuma-Gorath (First appearance)

Secret Playable Characters:

• Anita (Playable only in the Japanese version)

Bosses:

• Doctor Doom (First appearance)
• Thanos (First appearance)

Other Characters:

• Thor (First appearance) (Captain America's Ending) (Cameo)
• Betty Ross-Banner (First appearance) (Hulk's Ending) (Cameo)
• Adam Warlock (First appearance) (Juggernaut's Ending) (Cameo)
• She-Hulk (First appearance) (Cameo)
• Mephisto (First appearance) (Cameo)
• Scarlet Witch (First appearance) (Cameo)
• Vision (First appearance) (Cameo)
• Iron Fist (First appearance) (Cameo)
• Terraxia (First appearance) (Thanos' Victory Animation)
• Akuma (Gouki) (Anita's Attack Animation) (Cameo)
• Mei-Ling (Lin-Lin) (Anita's Attack Animation) (Cameo)

Reality

• Earth-30847

Locations:

• Captain America's Stage
  • Ruins in the Statue of Liberty
• Hulk's Stage
  • Amusement Park Carnival
• Iron Man's Stage
  • Stark Enterprises Space Station
• Psylocke's Stage
  • Atop a Bullet Train
• Spider-Man's Stage
  • Scaffold across the Daily Bugle Building
• Wolverine's Stage
  • Rocky Mountains
• Blackheart's Stage
  • Hell
• Shuma-Gorath's Stage
  • Chaos Dimension
• Juggernaut's Stage
  • Dockyard
• Magneto's Stage
  • Asteroid M
• Dr. Doom's Stage
  • Latverian Submarine
• Thanos' Stage
  • Thanos' Palace

Items:

• Infinity Gauntlet
• Infinity Gems
• Captain America's Uniform
• Iron Man Armor
• Spider-Man's Suit
• Wolverine's Suit
• Doctor Doom's Armor
• Captain America's Shield
• Proton Cannon (First appearance)
• Web-Shooters

Vehicles:

• The game is loosely based on the Infinity Gauntlet storyline.
• Thor's design is based on Eric Masterson's Thor costume^[1], which is a reference to Masterson being the Thor involved in the Infinity Gauntlet storyline. Captain America's ending in the game however, shows that this is Thor himself rather than Masterson, as he spoke with Odinson's manner of speech and Captain America referred to him as Asgardian.

• This game was dedicated to the memory of Jack Kirby, with character artwork based on his old designs.