Happy Birthday Mario

Top: on Level 3 of the “Pop-Up Patrol” microgame in WarioWare: Get It Together, a window depicting a smiling devil with four words of distorted text may appear.

Bottom: this is actually a reference to a malware website that gained notoriety in 2004, called “You Are An Idiot”, which would display this image, play a song, and hijack the user’s browser to resist being closed, with the only way to leave being restarting the computer. Note that the distorted text in the game lines up exactly with the lengths of the four words on the website, and the last word is clearly recognizable as “idiot”.

In the "Just My Type" microgame in WarioWare: Move It!, the player needs to spell a word in order to enter it into a browser search bar. When the word is spelled correctly, a brief victory scene plays where the "search results" are shown, which are a column of heavily blurred video thumbnails.

However, to the side of the thumbnails is one clearly visible ad graphic. There are nine different banners, of which one is chosen randomly, depicting characters from other microgames accompanied by gibberish text. Here are all the ad banners, extracted from the game's files.

Full recording of the "Wario Press Conference" sound file available for download from Nintendo of America's official site in 2003, featuring over 6 minutes of Charles Martinet speaking full sentences as Wario to promote WarioWare: Mega Microgames and Wario World.