The Dreamcast had quite a bit of cancelled game before it met its erupt end on March 31st, 2001. Some of the popular ‘unreleased’ games that have made it out in the wild include a port of Half-Life and even SEGA-AM2’s Propeller Arena. Looks like we have one more game to add that list, Colin Mcrae Rally 2.0 (the precursor to the DiRT games).
Colin McRae Rally, the first game got a release on both Windows and Playstation; while 2.0 only had a release on Windows. Mcrae Rally 2.0 added more difficultly levels (Novice, Intermediate and Expert), Arcade mode and more. Sadly the port that was unearthed was only 30% complete, but its still pretty cool to see.