FeelsBadMan

You could just go to his youtube channel and look at the videos. Anyways, here's the video links then:

There is a discord for both Donkey Kong Country Returns and Tropical Freeze, here you go. https://discordapp.com/invite/Pfm9g8J As for the 2nd question, I'm pretty sure you don't need splits, just a timer and probably some software (Not sure about this one though)

Agreed, this and LEGO Marvel Superheroes should have IL leaderboards.