Uploaded March 2023 | Updated September 2026, 2 weeks ago

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Authors: Malleo, @Monster3rum , @mkwLuke , @justin3055 , @Kierio04 , @EjayB , @cesar_mk, @p9e-x4u

This is a Tool-Assisted Speedrun (TAS). For more information, please visit tasvideos.org

TAS BKT Cut: -1:06.382
Previous BKT (1:45.077 by RS, Luke, Malleo): youtube.com/watch?v=Xt1aj_sIjRI
Current No-Glitch BKT (2:14.984 by RS, Luke, Marth, Ejay): youtube.com/watch?v=Y_ysFbXZamE
Current Real-Time WR (1:56.824 by Justin): youtube.com/watch?v=GWny_T84-7o
Alternative Encode with Debug Info: youtu.be/AGp1twuKXUA

Music: Super Smash Bros. Brawl - Tetris A Theme

Over 2 years since I proved that Rainbow Road ultra could be done 3 times in a time trial, we have finally put together a 3lap Rainbow Road TAS. Attempts were made to start a TAS using the Quacker, but due to the sheer difficulty of the 1 mushroom ultra, we ultimately abandoned the project.

Fast forward to a month ago and Justin has discovered the RR ultra can be done with 1 mushroom using the Shooting Star. Not only is this strategy RTA viable, it's objectively faster than the Quacker method. Since this method is faster, easier, and more fun to work on, motivations were high to tackle this track once and for all.

For the start of each lap, our goal is to start charging a standstill mini-turbo as early as possible, while still landing in an optimal position to set up for the wallclip. We can bonk the wall pretty early and use our airtime and momentum to keep moving away from the finish line while charging the SSMT. The clip itself just involves drifting, shrooming, and wheeling in just the right way such that we get a few frames of airtime before bonking the wall. The drift helps us rotate Funky to the right, so that he'll take a more direct path towards the last ramp. Upon landing, we can exploit outward-drifting bike mechanics; we start a right drift but then hold left. This actually shoots us considerably far to the left, allowing us to avoid bonking the ramp wall and carry a considerable amount of momentum off the trick ramp.

At the end of each lap, we perform a superhop. This outward-drifting bike exploit allows us to build what we call "External Velocity", ultimately allowing us to reach the speed cap. While this primarily saves time when entering a new lap, this is set up fast enough such that we actually save time before crossing into a new lap versus not doing the superhop. On the last lap, we perform the superhop in the opposite direction. This ultimately allows us to take a much more direct line towards the finish line.

On a personal note: it really warms my heart to see so many authors coming together to help make this possible. 15 years after the game's release and the TAS scene is still going strong. I'm excited for what's to come!

Want to make your own Mario Kart Wii TASes or chat with other TAS enthusiasts? Join our Discord over at discordapp.com/invite/EPD9yCu

Check out the history of all Mario Kart Wii TASes at mkwtas.com

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