(CNN) -- In Gotham City, Commissioner Gordon has the "Bat Signal" to talk to the "Caped Crusader." In Washington, President Barack Obama has Vine.
"Way to go, Miles. Way to save Gotham," Obama said in a Vine video tweeted by the White House Friday.
The online service allows users to record and share six-second videos. In this case, the President congratulated the young hero of San Francisco, a little boy whose "Make-A-Wish" was to be Batman for a day.
On Friday, San Francisco was transformed into the fictional home of Batman. Thousands of volunteers helped Miles Scott, 5, save damsels in distress and battle villains -- the Penguin and the Riddler.
Miles has battled leukemia since he was 20 months old but the disease is now in remission.
Even the Department of Justice was in on the crime-fighting action. An FBI agent and the U.S. Attorney for the Northern District of California declared Friday that the villains had been charged with conspiracy and kidnapping.
Other politicians also put out messages to the young Dark Knight.
Mobile users view video here: http://bit.ly/1czFoTJ
"Thanks for saving Gotham, #SFBatKid," Tweeted Sen. Diane Feinstein, D-California.
Bay Area U.S. Rep. Eric Swalwell, D-California, put out an "urgent message" on YouTube to Batkid.
"Only you can defeat the Riddler and the Penguin," Swalwell said. "We're all counting on you Batkid to use your superhero powers to protect our city."
The White House has been using Vine since April, when it put out a video from the White House Science Fair featuring Bill Nye "the Science Guy" and LeVar Burton of "Star Trek: The Next Generation."
--CNN's Bryan Koenig contributed to this report.
™ & © 2013 Cable News Network, Inc., a Time Warner Company. All rights reserved.