A list of all the World Records for Marble Blast Ultra! Here it is. Either get the top time on the leaderboards OR send a video of you beating the top time on the leaderboards (offline) to claim a record. The beginner levels have been completely monopolized by Xelna but the rest of the levels seem pretty open for those of us with less skill
The rest of the levels (intermediate/advanced) are owned massively by Imperial, with multiple appearances from Regislian and RadiantVibe as well as some from an assortment of many other players!
NOTE: Records with more than four people tying for it will be labelled as "Many Players".