In the early days of Mario Kart online endeavors, Mario Kart Wii experimented with not just offering online races to partake in, but also unique challenges. These challenges have in 2025 all been lost to time and are no longer possible to be played legitimately, but that won't stop me from looking back at a time when Mario Kart Wii had boss battles, race-able battle tracks and other super unique competitions on offer! Footage may be courtesy of: World of Longplays Longplay Archive FCPlaythroughs Nintendo Utopia #mario #mariokart #mariokartwii