I don't think there is to make it full screen at the moment, I can assume that it's true from playing other pokemon games (Serpentine and Raptor Ex) made through the same/similar program as Reborn.
Yeah, you go to the Wasteland Wall, it's entrance is north of the building where you talk to the glasses kid for the mudkip event.
You also need a pokemon that knows strength and be prepared to face a level 65 Medicham.
I see alright, because I remember running into it at the near the end of episode 7 and I ran into teddiursa by the destroyed train station where everyone starts in the beginning of the game. It obviously ran away from me and I haven't seen it since.
Alright, I'm going to have to save that for later. When I change the time on my computer to day, Mudkip should appear in that area with the train right ?