For all of you who dont know what Rickrolling is, then we have got the definition for you straight from wikipedia.
Rickrolling is an Internet meme typically involving the music video for the 1987 Rick Astley song “Never Gonna Give You Up”. The meme is a bait and switch: a person provides a hyperlink that they claim is relevant to the topic at hand, but the link actually takes the user to the Astley video. The link can be masked or obfuscated in some manner so that the user cannot determine the true destination of the link without clicking. When a person clicks on the link and is led to the web page, he or she is said to have been “rickrolled”.
Now imagine Crytek’s Crysis editor, Sandbox, being used to make an amazing “Rickroll Crysis Mod”. Check the video below.