This pack was created by Spitz, ‪@Toothy7564‬
The gist of this pack is to make the levels of Super Monkey Ball 2 feel more like its first iteration, removing starting platforms and several gameplay mechanics unique to the sequel.
IL times are good, all of them at the time of upload are matched or beaten in this TAS. Expert provides a few larger levels that allow for harder, newer strategies to be performed that make it easier to TAS than the other modes.
There is an announcement at the very end of this video.