Teen Titans basically follows the series with the young superheroes from various DC comic books versus the villains straight from the show. The team leader is Robin and his merry band of good guys consists of Raven, Starfire, Cyborg, and Beast Boy. With each team member having their own special defenses, they combat against henchmen and their villain bosses.
The story starts at Titan Tower, fighting off various henchman, all the while training you in how to fight the superhero way. It then progresses to the H.I.V.E Academy and then other various bad guy hideouts. Later, you learn all the Titans have copies of themselves supplied by Gizmo, H.I.V.E graduate, and that you must face each one throughout the course of the game.
From level to level, you have more than enough to do, with the numerous spaces to fight and never ending baddies to defeat. When fighting a certain villain, you get a great deal of practice in and then you get to the main fight scene; but even after finishing off one, you go straight into the next level.
To help you fight the various assailants, each superhero has their own unique talents. Robin has his stick, bombs and other powerful toys, while Cyborg has missiles and a laser beam, not to mention his exceptional strength. Raven and Starfire both can fly around and, while Raven has mystical energy attacks, Starfire has her out-of-this-world moves. Not to mention Beast Boy, who, like it says in his name, can turn in to any beast, mainly gorilla, bird and tiger, to accomplish his task.
On each level, a particular character's talents may be needed to keep you moving forward - talents such as Raven's telekinetic force field or Cyborg's super strength punch. This allows you to give each character a try and not just fall into a pattern with just one character.
Also after each level, you get awarded characters, arenas, and media to be used outside of Story Mode. They also have a Fight Mode that lets you duke it out with friends, finding out which one is the stronger superhero.
Overall, this game is all about pushing forward and getting to the bottom of the story, and if you need something to do in between, there are always plenty of henchmen to beat up in and out of Story Mode.