The double jump works on both versions. You need to press jump 3 times really fast while walking up a slope. On the 3rd press you need to hold it. I use the the tree as a visual cue and start pressing jump when I see Jim line up with the base of the tree on the right. If you have questions feel free to message me on twitch.

Do you want me to bring my pc for just the race or for the whole marathon?

Cool. I can bring an extra tv and capture card if that helps.

Any way to setup a race for MMX? I know St4rSurfer wanted to run it as well.