Ultimate Marvel vs. Capcom 3 is a crossover fighting game developed by Capcom.\r
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The main gameplay of Ultimate Marvel vs. Capcom 3 is largely similar to that of Marvel vs. Capcom 3. Players select a team of three different characters to fight a 1 versus 1 battle. The game utilizes the same tag-team feature as its predecessor, where a player may choose to swap between their three characters at any point during a match. During combat, each player can call in one of their off-screen characters to do a selected special move, known as an “assist”, by pressing the corresponding assist button. As characters attack, the teams Hyper Combo gauge fills with energy, which can be expended by the player to execute certain attacks, such as Hyper Combos and Snap Backs. The goal is to use various attacks to exhaust the opponents health meter and defeat the entire enemy team or have the most cumulative health when the timer runs out.\r
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Ultimate Marvel vs. Capcom 3 features three-dimensional character models and backgrounds; however, gameplay remains restricted to a two-dimensional plane. The game utilizes an eight-way directional system that allows the player to jump, crouch, and move toward and away from the opponent. The game also uses the simplified, three-button control scheme of undefined light, medium, and heavy attacks introduced in the previous installment. The exchange button, used to launch opponents into the air and switch characters while performing an air combo, returns. The aerial exchange feature has been altered in Ultimate Marvel vs. Capcom 3; players can either remove meter from their opponents Hyper Combo gauge, add meter to their own gauge, or deal more damage. Another new gameplay change is the addition of button-mashing, where certain Hyper Combos will deal more damage the more times the player repeatedly hits a button.\r
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The “X-Factor” mechanic, which grants increased damage output, speed, and health regeneration for a limited time upon activation, also reappears. In Ultimate Marvel vs. Capcom 3, X-Factor lasts for a shorter duration compared to its predecessor, but may now be activated in the air. The attack and speed boosts for each character have been adjusted, and the duration of X-Factor for each fighter has also been changed across the board; generally, the more powerful characters receive less time to utilize the increased stat boosts. Additionally, Hyper Combos performed during X-Factor are now subject to damage scaling.\r
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While the core mechanics remain the same, a number of aesthetic changes have been made in the update, including new character and stage select screens. The games HUD has also been redesigned. In addition, many returning characters receive balancing changes. These include new moves and animation tweaks for certain characters.\r
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An improved netcode is present in the game, providing smoother online play. A new spectator mode allows up to six players to watch online matches between other players. Rematch features and leaderboard functionality have also been improved to enhance the games online experience.