(From the Mutants & Masterminds Hero's Handbook description.)
The detailed character creation system lets you create the hero you want to play, choosing from a wide range of skills, advantages, and power effects. Customize your hero's powers with modifiers to create an almost endless range of superhuman abilities. Choose the complications your hero must overcome, earning you the hero points to achieve victory. You can also choose from one of more than a dozen heroic archetypes, customize as you like, and be ready to play in just minutes!
The streamlined system of game play requires only a single die roll and features easy to use rules. Play out an entire heroic adventure in a few short hours without long, drawn-out encounters. Plus the hero point system allows players to influence the flow of the story and pull off superheroic stunts in the best comic book tradition!