"The Ultimate Showdown of Ultimate Destiny", often shortened to "The Ultimate Showdown", is a comical song and video released on December 22, 2005. The song was written and performed by Neil Cicierega under the pseudonym "Lemon Demon", with art and Flash animation by Shawn Vulliez/altffour. Music video "The Ultimate Showdown" is a massive, citywide battle set in Tokyo started by Godzilla and Batman, ultimately lasting for a century and involving dozens of pop-culture icons, fictional and otherwise, ending with Mr. Rogers emerging victorious and then committing seppuku. It gained a large cult following among web enthusiasts and became the "User's Choice" on December 28, 2005, on Newgrounds, where it has been viewed over 13.2 million times. It appeared on several other websites including Albino Blacksheep, YouTube, Flashportal, Transbuddha, and Weebl's Stuff. In 2006 it was included on Lemon Demon's fifth album Dinosaurchestra. It had over 25 million views on YouTube as of November 2020. A higher resolution fan upload has received over 4.5 million views on YouTube as of January 2023. The song topped the "Funny Five" on The Dr. Demento Show for several weeks and was the #1 Request for 2006. The video has since been parodied and referenced repeatedly in other flash videos. A new version of the song was later recorded specifically for the Rock Band Network and was released for the service on July 6, 2010, under the title The Ultimate Showdown (RBN Mix). In 2009, the song was rerecorded with a full band, and this track was included in Lemon Demon's 2011 EP "Live (Only Not)". In early January 2021, the original music video on YouTube was taken down by Shawn Vulliez, the original animator of the short. He would go on to reupload the music video to his own channel 'Srsly Wrong'. Plot As Godzilla is going on a rampage through Tokyo, Batman suddenly hits him with a Bat-Grenade. As Godzilla attacks his new foe, Shaquille O'Neal and Aaron Carter join the fight, but are run over by the Batmobile. Unfortunately, before Batman can return to the Batcave, Abraham Lincoln rises from the dead and shoots Batman with an AK-47. Lincoln is then forced to flee by Optimus Prime. After Godzilla kills Optimus Prime, O’Neal returns “covered in a tire track,” but is then attacked by Jackie Chan. Meanwhile, Lincoln attempts to finish off Batman with a machete, but is stopped by Indiana Jones.