The second 10-minute demo, short as it was, held the flashier attraction: a Mega-Evolution battle that served as a hefty, story-driven boss encounter. While Arceus had plenty of big, strong Pokemon to encounter in the wild, Z-A's addition of Mega Evolution lets players face beefed-up versions of regular monsters in longer, more challenging fights.

A, Game Freak took a much different approach with the main battle system and its corresponding mechanics. But beyond that, battling Rogu