These are the splits I'm using for my runs. I updated them and removed the "END" Split, as you don't have to play Level 101 anymore. 
These Splits use the bosses as splitpoints.
A run starts at -6 and a half second, reason for that is, I start the Splitstimer exactly when I press the "Start Speedrun" Button, then it takes 6 and a half seconds until you are allowed to move/ the ingame countdown hits 0.
They are kind of unnecessary as we now use ingame time to avoid time loss by game lag, but I wanted to share them anyway.

As the title says, they can be used for every run category, even for Boss Rush mode! NewGame+ Bosses have some extra accessoires, but I didn't bother to add the pictures, lol

~Nitro

Nitro's MainGame Splits

chrrynobaka

Slime-San

Switch

MelonDaPro

PlayStation 4

Xbox One

Macintosh

Linux

Hypo

fabraz