Round the Darklin' Tree
A small circular killing field, surrounded by an outer ring and filled with just enough stuff to make life interesting. Lots and lots of invisibilities... Pass through the center to kill the lights, pass into (or out of) the outer ring to bring 'em back up. For added fun, the Tempus Choir is replaced by Alvin and the Chipmunks. A fast-paced blast.
Levels in map "Round the Darkling Tree":
Round The Tree