During the latest episode of Pokémon Smash, viewers were treated a to a glimpse of one of the stat building mini-games in X and Y.
In the mini-game, players use the touch-screen to fling fireballs towards the different parts of a poor, hapless Magneton. At the same time, trainers will need to avoid balls being flung back. After a dose of training, Pokémon can then gain a health stat upgrade.
According to Serebii, there'll be something rather special about the Mega Evolution in next week's episode, in addition to another new feature for the game.