Ripped from the pages of Marvel and DC, then glued back together with pasty justice. Playing DD is like owning a comic book that'll punch you in the face at every turn of the page.
It is Southern California in the current time, but the world is unlike our own. Life is peaceful in Orange City. Repulsorlift engines are gaining popularity in the car market. Girls swoon over heterosexual male musicians. The style is tight, slick, loose, and everything in between.  Ultra reality video game technology casts you as the main character. Soda and burger wars rage, as cafes of all kinds vie with clubs for ownership of a city district. School is only a formality, and a polite way of introducing mass advertising to amateur sports. Energy weapons provide a cooler-looking and cleaner way of killing people. Money's easy to come by, just take someone else's. Companies can quickly afford towering buildings, for they sabotage the competition.
A strange ripple of energy has recently swept the area, causing highly unusual, cinematic, and dangerous mutations in a small percentage of the population. Though some of the affected have indeed sprouted a third arm, most mutations are cool and downright useful. Which is good....
The police caught that serial-arsonist, with only three injuries. Then he melted the wall of his cell with flames from his eyeballs and escaped. The mayor and his identical but much more evil twin are duking it out on top of the nuclear strike bomber, headed right for the powerplant where a school bus full of mentally challenged penguins teeters on the edge of a cooling tower. And, of course, the plant going to blow in about 12 seconds, unless the plane hits it first. Life is anything but peaceful in Orange City.
After taking care of all that, and remembering to plug the volcano with the convenient megaton boulder, you reflect on how much more relaxing today was than last Monday, which is now a repressed memory. Things like that don't happen every day.
Unless you're you. Which, sadly, you are. You're a superhero, and if your fan club knew how many stress pills you take every night, maybe they wouldn't all dress up like you at the conventions.
A short spat on the rules.
Unless you have a very good, balanced character concept to present to Saros, power generation is random. A blend of Villains & Vigilantes (which has been very, very fixed and revised - Saros) and Marvel Superheroes is used for a humongous list of potential powers. If a power you don't like is rolled, well, you can scrap the whole rolled lot, or take it and be on your merry way. There are no bad super powers!
As for your normal self, well, this is left to you. V&V suggests you pattern this character after yourself, with appropriate ratios in the attributes, a parallel job and personal life, but this can make things pretty hairy.... Your choice.
Suggestion: To make your alter ego's name, if patterning it as a parallel you, take your middle name as the character's first name, and a nearby street as his last name.
Combat in this game is fun, especially if you have around 30 strength and you can throw people around. Or through walls. On the twentieth floor.
I'll spare you the gruesome details of the revised V&V to-hit system.
Knockouts are rare until the fight is won, but they happen, and boy are they gratifying. Something like 2% chance per point of HP inflicted. And, what with 11 HP being a rather respectible amount, you don't get a lot of chances. Most damage, you will (hopefully!) roll with, and take into your Power score, which is closer to 60. The amount of damage that Power can absorb each hit is 10% the current power, rounded down. Thus, if you have Power 60, HP 11, and are hit by a brick for 11 damage, 6 points would be taken into Power (60 divided by 10), reducing it to 54, and the remaining five straight into HP, with 10% chance of knockout. If you didn't follow that, it doesn't matter, you're not the GM.

It is bad to kill villains if you're the traditional superhero. This doesn't mean you have to be Batman, and break your arm to save Thug #4 from a little harmless acid bath, but it does mean you want to avoid being tried for murder. The Villains and Vigilantes rules for court proceedings are freakishly detailed, and I love it. It will pay to watch the news. Shoot, you're gonna be on it every so often. Of course, you're welcome to be a more violent sort of hero. If you've got Gambit's power set, you can hardly insure the safety of your enemies.
It would be pointless and  time-consuming to make an example character sheet. Instead, consider looking in the characters section for this game.
The superhero game where fashion sits...
Puttin' on the ritz