the thing is that the run would be too slow to be enjoyable at least for me

just download the pack from the google drive linked in the rules

It is physical impossible to perform the stick angles required for PU movement. The bljs are also frame perfect and even need pause buffering to perform. That means that you have to press a and start 15 times a second. So that is impossible too

Maybe you try to download it from Google Drive. When you go to livesplit and type in the game Red Ball, there should be a line with "Autosplitter". When you see the line you can click the "Website" Button. This should lead you to google drive

70 Star is the "No Major Skips"-Catogory, but it is pretty hard to learn the whole stars and movement. 16 Star uses MIPS clip and BLJs which aren't really hard. I would recomment that to start out and then do 70 Star which is more movement based. 120 allows any glitches but you don't have to worry about that at first.