Visualizer
In May of 2009, Nintendo hosted a music visualizer for MacOS X, Windows Vista, and Windows XP on the official Rhythm Heaven (DS) website. But on January 3, 2016, Nintendo took down the website, along with the download for the visualizer. The visualizer is assumed only to be on the US website, because on the Japanese website, which is still up, there is not a download and it only hosts wallpapers. The Australian website is up, but is broken. Even when trying to visit the site on the WayBack machine, the US website won't work properly. It featured several characters from the minigames in the game, such as the Love Lab assistants from Love Lab, Stepswitchers from Lockstep, the Monk from Munchy Monk, Dog from Dog Ninja, Stomp Farmer from Crop Stomp, the Synchrettes from Splashdown, Pop Singer from Fan Club, Frogettes from Frog Hop, Moai Kids from Moai Doo Wop, DJ Yellow from DJ School, Spooky from Big Rock Finish, Captain from Blue Birds and a dancer from the Dazzles dancing in strange poses. The only evidence of its existence is news articles and Vimeo video.
Link to Lost Media Wiki Page: https://lostmediawiki.com/Rhythm_Heaven_Visualizer_(Partially_Found)
Link to Vimeo video: https://vimeo.com/4903977
Link to YouTube version: https://www.youtube.com/watch?v=bKMIiMUfn-0&lc=Ugyf-dvE74HUugM1Zm14AaABAg