I am not sure if any video game could capture lightning in a bottle like Wii Sports did in 2006.
Maybe the first cheap, accessible, well-done virtual reality?
NNID: theRepublic -- Steam ID: theRepublic
3DS - Currently Gaming Like It's 2011 - The Legend of Zelda: Ocarina of Time 3D
PC - Currently Gaming Like It's 2012 - Borderlands 2
Mobile - The Simpson's Tapped Out and Yugioh Duel Links