Bob-Omb Battlefield
Whomps Fortress
Dire Dire Docks
Rainbow Ride
Only the first one is locked. I think that while Tock Tock Clock is a better level than Rainbow Ride, Rainbow Rides status as the last major level and its prominence on the box art and in outside materials like Smash Bros makes it more iconic.
I just decided to change this sig.
Blaaaaaaargh
azuarc