Press z and m for editor 1 - Blocks 2 - Inside geometry 3 - Spikes 4 - 4 long blocks 5 - Special 6 - Speed Portals and more 7 - Slopes and more 8 - New Pits and more 9 - Monsters and more
This is a custom made level, it is an extreme demon. Song, Dark Angel by f-777.
