From StrategyWiki, the free strategy guide and walkthrough wiki

This is the level that appears only in certain versions of the game. Here, you get to sword fight a giant spider, assuming it hasn't silked you already. You also have to levitate down a large hallway, avoiding deadly spider sacks that might have you eaten alive. This level also has a surprising deathtrap which is quite cool, and features the ability to get your character drunk.