They walk among us, selflessly fighting street crime on our behalf -- average, everyday people who decide to don spandex or rubber suits and take on names like "Terrifica," "Mr. Silent" and "Citizen Prime." And their ranks are evidently growing.

According to the World Superhero Registry, there are more than 200 people out there who are ready at a moment's notice to dress up as a homemade superhero and protect regular citizens from street crime.

The registry's rules say that its members "must stand for unambiguous and unsponsored good," and that they need to create a character that doesn't infringe on the copyrights of Marvel or DC Comics. They also can't use serious weapons (Citizen Prime carries a stun gun) -- even though the evildoers they fight may be armed.

The superheroes' good works run the gamut, from helping drunk girls get home late at night to hanging out on dangerous corners watching out for drug deals. "Kids love the costume, so I seek to keep them out of the gangs today rather than take them on tomorrow," said the 41-year-old Prime.

Do you know any amateur superheroes? What would it take to get you in a pair of tights to go out and fight pickpockets and other varieties of thugs?

Think any of these women have signed up to be super heroes?

Running with the Bulls

    Revelers are chased by Conde de la Corte ranch fighting bulls on the first day of the running of the bulls during the San Fermin festival in Pamplona, northern Spain, on Monday, July 7, 2008. (AP Photo/Victor R. Caivano)

    AP

    Revelers chased by Conde de la Corte ranch fighting bulls, not seen, run on the first day of the running of the bulls during the San Fermin festival in Pamplona, northern Spain, Monday, July 7, 2008. The 'Los San Fermines' festival, held since 1591, attracts tens of thousands of foreign visitors each year for nine days of revelry, morning bull-runs and afternoon bullfights. (AP Photo/Daniel Ochoa de Olza)

    AP

    PAMPLONA, SPAIN - JULY 07: Micky Loomey of New Zealand is attended to by members of the Red Cross after being injured during the first San Fermin running of the bulls on July 7, 2008 in Pamplona, Spain. Fighting bulls are run through the old part of Pamplona for eight days in this fiesta made famous by the 1926 Ernest Hemmingway novel 'The Sun Also Rises'. (Photo by Denis Doyle/Getty Images)

    Getty Images

    PAMPLONA, SPAIN - JULY 07: A runner leads the pack of fighting bulls around a curve during the first San Fermin running of the bulls on July 7, 2008 in Pamplona, Spain. Fighting bulls are run through the old part of Pamplona for eight days in this fiesta made famous by the 1926 Ernest Hemmingway novel 'The Sun Also Rises'. (Photo by Denis Doyle/Getty Images)

    Getty Images

    PAMPLONA, SPAIN - JULY 07: A fighting bull takes the curve during the first San Fermin running of the bulls on July 7, 2008 in Pamplona, Spain. Fighting bulls are run through the old part of Pamplona for eight days in this fiesta made famous by the 1926 Ernest Hemmingway novel 'The Sun Also Rises'. (Photo by Denis Doyle/Getty Images)

    Getty Images

    A runner is attended to after being injured during the first day of the running of the bulls at the San Fermin festival in Pamplona July 7, 2008. REUTERS/Joseba Etxaburu (SPAIN)

    Reuters

    A runner is attended to after being injured during the first day of the running of the bulls at the San Fermin festival in Pamplona July 7, 2008. REUTERS/Joseba Etxaburu (SPAIN)

    Reuters

    Runners sprint next to Conde de la Corte fighting bulls during the first day of the running of the bulls at the San Fermin festival in Pamplona July 7, 2008. REUTERS/Joseba Etxaburu (SPAIN)

    Reuters

    A reveller is tossed by a heifer on the first day of the running of the bulls at the San Fermin festival in Pamplona July 7, 2008. REUTERS/Joseba Etxaburu (SPAIN)

    Reuters

    Runners sprint in front of Conde de la Corte fighting bulls and steers during the first day of the running of the bulls at the San Fermin festival in Pamplona July 7, 2008. REUTERS/Joseba Etxaburu (SPAIN)

    Reuters