guys, just a fun info for you guys...
i've played this level with fighting Darth Vader instead of Mara... I downloaded it from somewhere, I forget. Anyway, with Luke I force pushed Vader during the last fight scene from Episode V. The part where Luke gets his hand cut off. Vader fell off to the bottom just like Luke does. I got Vader to get sucked into one of those slide thingys... then BOTH of us fell on TOP of the Millenium Falcon to duel... it was HILARIOUS! Be sure to keep him alive and FORCE PUSH him!