This Mario Kart Wii Custom Track is known as Hman's Deathrun 2 created by Hman6516. It has 8 levels with a victory lap and is similar to a modern day MrBeast challenge.
All levels were performed at 100% speed but I used a save state before each level to defeat this challenge. This custom track was made for TAS and is practically impossible otherwise.
#MarioKart
![](https://i.ytimg.com/vi/-PqggVpz7a0/maxresdefault.jpg)