Fight the evil forces of Doctor Doom with your favorite Marvel Super Heroes in Marvel's first free-to-play massively multiplayer online (MMO) game as Gazillion Entertainment and Marvel Entertainment announced today that Super Hero Squad Online is now live.

Check out the enhanced and expanded CG trailer for the upcoming "Super Hero Squad Online" MMO!

A look at all the characters available to create the various Marvel teams found in Marvel: Ultimate Alliance. Choose from a cast of over 20 playable characters and then select an existing Marvel team such as the New Avengers, Fantastic Four, Marvel Knights--to name a few--or build your own! Plus, get a look at some of the killer cut-scenes from the game!

Hero Up on the go and in 3D with 'Super Hero Squad: The Infinity Gauntlet,' available fall 2011 for Nintendo 3DS!

Iron Breaks. Soldiers Fall. Gods Die. Get your first look at the official trailer to FEAR ITSELF #1 right here! Comic luminaries Matt Fraction and Stuart Immonen deliver the most anticipated event of 2011, as Spider-Man, Captain America, Wolverine, Iron Man and the rest of Earth’s mightiest heroes find themselves embroiled in a war against the God of Fear…and at the center of a secret that will tock the Marvel Universe.

Get the full rundown on who's who in this Final Character Roster Trailer for "Marvel vs. Capcom 3: Fate of Two Worlds"!

Get even more of your favorite heroes in this extended cut of the Super Bowl XLVI commercial for "Marvel's The Avengers," in theaters May 4!

Your favorite heroes assemble in the all-new Super Bowl XLVI commercial for "Marvel's The Avengers," in theaters May 4!

Get ready for Earth's Mightiest Heroes to assemble on the big screen with the second epic trailer for "Marvel's The Avengers," in theaters May 4!

Marvel's greatest super heroes assemble once more in this trailer for Season 2 of "The Avengers: Earth's Mightiest Heroes!" Catch the season premiere inside the Marvel Universe block on Disney XD April 1!

Tony Stark gives Loki a headcount of Earth's Mightiest Heroes in this new TV spot for "Marvel's The Avengers," assembling in theaters May 4!

Get an awesome new look at the S.H.I.E.L.D. Helicarrier in this TV spot for "Marvel's The Avengers," in theaters and IMAX May 4!

Iron Man, Thor, Hulk and more of Marvel's greatest characters assemble on a new day and time, Sundays at 10:00AM ET!

Earth's Mightiest Heroes overcome their differences to protect the world in this new TV spot for "Marvel's The Avengers," in theaters and IMAX May 4!

The Avengers face their toughest threat yet in "Gammaworld," a special one-hour episode of "The Avengers: Earth's Mightiest Heroes!" premiering Friday, November 26 at 8:30 p.m. ET on Disney XD!

Watch "The Super Hero Squad Show!" Season 2 promo!

See what the critics are saying about "Marvel's The Avengers" in this new TV spot for the film, and don't miss it in theaters this Friday, May 4!

Catch another new TV spot for "Marvel's The Avengers," hitting theaters & IMAX 3D tomorrow, May 4!

"Marvel's The Avengers" is finally in theaters & IMAX 3D nationwide! Hear what the critics think of the movie event of the summer, and get your tickets now!

"Marvel's The Avengers" is the #1 box office opening of all time! Check out this new TV spot for the film and catch it in theaters & IMAX 3D now!

Check out a new TV spot for "Marvel's The Avengers" and see the film again this Memorial Day weekend!