Lair of the Leviathan is the 4th level in Gehenna. Here, The Leviathan sleeps! You must navigate through its organs in order to reach safety! Similar to Corpse of the Behemoth, this level takes place inside the body of a giant creature, with the notable difference of the beast still being alive as opposed to being dead. This level is more platforming-based than anything else as the player must navigate past spikes using moving platforms, tendrils, and other internal organs.