Nintendo unveiled the newest addition to the Smash Bros. lineup – the Wii Fit trainer. If you’ve ever wanted to kick butt while doing yoga and squats, now’s your chance. Related Posts:Super Smash Bros. - Now Featuring Cloud StrifeWii U Bayonetta - Sega's Definitive VersionSuper Smash Bros. - Cloud RevealSmash Bros: Pac-Man Announcement TrailerMega Man Unlimited: A Fan Tribute to the Blue BomberNintendo's Shigeru Miyamoto Reveals How He Developed…