If you think you've got what it takes, head to that bloody great thing called The Fortress for a serious showdown sesh, where all things breaks, beats, techno and house bounce off the corrugated metal (recycled and reborn through the ardour of the noble souls who rebuild it each year!) and reverberate through the dancing-compacted ground right up your spine. Join the ranks of the barmy bass-face army and get storming those walls like it's war.