I did it again!
Tower Ascent - D8AF-0000-027C-DF0A
Something I'm pretty pleased with in this stage is that every section has multiple ways through. Usually there's an alternate faster method than the obvious way through. Some sections even have 3 or more ways. This also applies to the mini Rube Goldberg machine at the end, which can do one of three different things depending on how you end the level (well potentially more if you jump over the end goal and mess with the machine itself, but... yeah).
Anyway I'm going to go play JSH's level now.
Just got world record on this!
I wasn't as much a fan of Bowser Escort Mission. He's just so random, I gave up after several attempts where he just wouldn't ever jump to the right places.
Also beat Donald X's level.