The game combines fast-paced beat-'em-up combat with deep RPG customization.
The game's success led to the 2005 sequel, , which expanded the roster to include playable villains from the Brotherhood and introduced online multiplayer. This series eventually evolved into the broader Marvel: Ultimate Alliance franchise. X-Men Legends... 20 Years Later
: Characters gain experience, level up, and earn skill points to unlock or enhance active and passive mutant powers.
: Originally released for PlayStation 2, Xbox, and GameCube, with a portable version later developed for the N-Gage.