Brutal Final Doom - TNT: Evilution - Ultra Violence - Pharaoh (Level 31) - 100% Completion

This secret level is accessed from level 15 "Deadzone". There are two exits in this level. The main one proceeds on with the main storyline with level 16 "Deepest Reaches" and the secret exit, taken here, goes on to the second secret level (level 32) "Carribean".