Just Dance 2016 sold 940k last year http://www.vgchartz.com/game/85741/just-dance-2016/
Mario Kart Wii sold 601k last year http://www.vgchartz.com/game/6968/mario-kart-wii/Global/
Smash Brawl sold 420k last year http://www.vgchartz.com/game/6962/super-smash-bros-brawl/Global/
Mario Galaxy 1&2 sold a combined 470k last year http://www.vgchartz.com/game/35084/super-mario-galaxy-2/Global/ http://www.vgchartz.com/game/6963/super-mario-galaxy/Global/
These sales are crazy for a system that sold less than 100k last year.