The The Marvel Super Heroes Advanced Set box contains rules and materials expanding on the original Marvel Super Heroes role-playing game. The Advanced Set took the basics established in the rather simplistic original set and expanded it into a full-fledged game capable of supporting a whole campaign. The rules are laid out in the blue Player's Book and the red Judge's Book (Judge = GM), both of which are contained within the box.

From the back cover:

The Best Heroic Role-Playing Game JUST GOT BETTER!

It began with MARVEL SUPER HEROES, the role-playing game that let YOU join the adventures of Spider-Man, Captain America, and the Uncanny X-Men.

Now the adventure continues with The MARVEL SUPER HEROES ADVANCED SET, which expands the boundaries of the original game and reaches new levels of comic-book action and adventure!

Within the two books of The MARVEL SUPER HEROES ADVANCED SET you'll find New Heroes! New Powers! A New Character Generation System! New Combat Options! An Expanded Universal Table! More to build, fight, buy, and take apart! PLUS full rules for setting up your own MARVEL SUPER HEROES campaign based in YOUR home town!

AND, if your heroes are getting too cocky, DOCTOR DOOM and the other nefarious MARVEL SUPER VILLAINS are waiting in the wings!

Everything you need to expand the MARVEL SUPER HEROES Original Set is here. The legions of MARVEL SUPER HEROES game players demanded an expansion with all the power of the original, and the titans of TSR have delivered!

This set consists of a 96-page Player's Book, a 64-page Judge's Book, a 22-1/2 by 33-inch full color, two-side map, over 40 Character Cards, 80 Stand-Up Adventure Counters and two 10-sided dice. The MARVEL SUPER HEROES ADVANCED SET may be played by itself, but is designed to expand the existing MARVEL SUPER HEROES Game. THe MARVEL SUPER HEROES Game is for two or more players, ages 12 and up.