Completed the Rank 1 levels, "Spider Attack!" (absolutely epic theming and music!), "Trinity Tower" (love the Freedom Planet 'memorial') and "Powerplant Faceplant".
If I had to give a word of warning, I tend to mark down levels if I'm forced to play with Clear Physics permanently enabled. On some styles, it's almost impossible to work out what's a background object, what is solid terrain and what is steel, for example.