A friend of mine get together once a week and play OotS at Denny's. We stumbled across a new way to play: Speed OotS.

Speed OotS is a cooperative style of play. The objective is to finish the game in as few turns as possible, counting each time the first player takes a turn as a 'turn'. Essentially, everyone goes once, and then it is a new turn. All cards are played to the benefit of getting through the dungeon the fastest.

We played Roy/Durkon, and rocked the dungeon in only 35 turns and 2 hours.
using the long game (2 players, 5 levels + Xykon, min. 12 loot/schticks to enter Xykon's lair).