The game allows players to select a team of four given characters from a larger pool of heroes and villains; team members are interchangeable and may be swapped during gameplay. General gameplay mechanics are similar to those of the Heroes Legends series. Each playable character in the game has a unique fusion with every other playable character in the game. An example is Captain using his shield to reflect Storm's lightning bolts. Players have the ability to level up characters and earn new abilities and powers. [Playable characters] - Marvel Heroes - Ultimate Alliance - Captain - Daredevil - Deadpool - Gambit - Green Goblin - Hulk - Human Torch - Iceman - Invisible Woman The first half-hour of the game introduces you to all you'll need to know to get you through. From an isometric camera view, you lead a team of four Marvel stars through hordes of expendable henchmen and glowering robots, occasionally taking detours to solve simple puzzles and bash on the villains standing between you and fist-pumping victory. You'll play through all of this with a superhero squad of your choosing. If you somehow missed the first three games using this setup, you'll constantly be in control of a team of four characters. At any time, you can switch which member of the team you're controlling, and most of the time you can swap in and out any number of the 24 heroes and villains there are to unlock in the game