DKII on 07 June 2007
If you're going to get an extra controller anyway, you might as well pick up Wii Play.
Super Paper Mario is great, will keep you entertained for awhile.
Other good games that I've owned and can recommend that you might like depending on your tastes: Super Monkey Ball, Madden '07, Trauma Center, Elebits, Marvel: UA.
Other people have also enjoyed Rayman, WarioWare, Sonic, SSX Blur, Godfather though I haven't played those myself.
