The player is seen riding a bike (already posted the other day).
There is a quick shot of a water fountain with two Horsea statues shooting out water at a Clamperl statue in the middle.
The player walks up a staircase to a train station - we can see train tracks behind him, which go over a bridge.
Skrelp is battled on the beach over a puddle of water with the ocean and a mountain in the background.
Flabebe battles Clauncher underwater (flower and all).
Mewtwo in its new forme uses some sort of attack that shoots white light up, then hits Xerneas with the lights, which then turn into small rainbow-colored shapes.
Charizard uses Fire Blast against Flygon in a Sky Battle.