The third is playing various Super Mario World levels that are either slightly different from in the actual game, or completely new. (For those who don't know, Super Mario World was one of the first video games [if not the first video game] I played, making it ironic how I didn't realize this was a recurring theme until just now.) In my latest dream like that (which was just last night, actually), I was playing some mix of Super Mario World and Jumping on Mushrooms (a neat backwards Mario game I found 10 months ago). I got to fly backwards but then created a paradox by falling too far. ;)
And no, I wouldn't know what any of these say about my personality or unconscious fears, hopes, or desires.