Not a ride - not in any park. This would be an attraction added to DTD (and - of course at a price).
I see it more like a Halloween Haunted House: You are handed a Light Sabre or Laser Gun (or both) and walk on in. At first you get some pretty easy Bar Patron Aliens to fight.
The Aliens you encounter are all projected by 3d light thingies, but, react to your movements. Maybe there is a cast member who dictates their movement?
As you progress through the attraction you get more difficult dudes to fight. You get points all along the way. They can also mix it up so no venture through is the same twice!
The Zenith is your final fight with Darth Vader.
Of course they take Pic's along the way which can be sold at the end. Perhaps the highest Point Earner of the day is rewarded in some way. This creates the Teen's to go back 20 times during the day!
Ok - a bit out there. I am 100% certain it is possible with existing technology. If I could build it - I would be a Billionaire!