I had another LD where I started out in my house (every dream seems important in this place). I looked in a mirror that we have and I noticed that everything around me was spinning like a wheel so I looked at my hands (weird tree stump shifting things) and begin to repeat that I was dreaming. As soon as I hit a good level of lucidity, everything stopped moving and became semi-clearer. But the weird thing is when everything stopped moving, I heard this cackle and I turned to look at the last second at a dark, shadowy figure who had just run outside the door. I thought, "that was weird" and moved outside also.
I somehow remembered to pay attention to the details (in this case the grass and my freaky hands). I walked to one side of the back, and there was a bubble. This bubble was kind of like the entrance to another world. The same being that cackled was in there. I motioned for him to come out and fight, but he was stubborn so I flew inside it. He wanted to fight me (later with two other women) for some reason. I came up with the brilliant concept of a lightsaber. -.- A red one with SFX and everything successfully appeared in my hand, but I decided against using it. He was hovering too far away so I decided to throw elements at him (even lightning 3&#33. I think I got this idea from reading FF games on wikipedia the night before. All I did was think of them and they shot out from my hand. The cool thing was, I could see his life bar at the top of the 'screen' (?) and it slowly went down when I hit him. After a few exchanges of fighting, we began talking and I asked him how many dimensions there were (got that idea from someone here). Instead of directly answering my question, he babbled on how stupid that question was and had someone who looked strangely like Lulu from FF10 try to get me from behind. I casted doom on her and she stopped moving. He then forfeited because I think he was irritated at my question. I flew out and back into my yard. I summoned up a door again and it appeared like I thought. The door was locked so I just kept on turning the knob, surprising a nearby DC that I could open a locked door without a key. The annoying thing was that it opened to a slide that came out the other side (behind the door was more like a treehouse room). I then slowly lost lucidity after not checking reality.

I've never had a dark figure cackle upon my lucidity, but at least I kept most of it while I fought him.
I even shut my eyes for a second while summoning the door and I didn't wake up!