Worst JJ1 Levels: I can't choose which is the worst out of Deserto,Medivo(if that's what it was called.I forgot.), and Orbitus. But if I had to choose one, I'd say Orbitus. and then Deserto. >O I could never beat all of JJ1 because of Orbitus. And I had to skip to the next level.sux.
Best JJ1 Levels: The old diamondus and tubelectric.

Worst JJ2 Level: The carrotus ones...the colors and the music of those have always driven me insane, and after I beat those the first time, the next time I played SP I skipped those carrotus levels. Oh, and Funky Gorillas too.
Best JJ2 Level: Electric Buggalo. I've always loved the music of that one, and Bad Pitt.=)