website|http://www.digitpress.com/forum/showthread.php?121546-Super-Mario-Kart-prototype|Thread on Digital Press
website|http://www.youtube.com/watch?v=wcwheUUzHZE|Video on youtube showcasing the different music on the Vanilla Lake track
website|http://www.youtube.com/watch?v=WR4uRe1Dzus|Video on youtube showing the beta version of Battle Course 3|
website|http://www.vgmusic.com/phpBB3/viewtopic.php?f=17&t=11520&start=0|Thread on VGMusic, where people have transcribed the unreleased music into a midi (SNES sounding) format|
website|http://forums.lostlevels.org/viewtopic.php?p=24953|Thread on Lost Levels, with some additional information|