Great multiplayer Wii games?

hey, im bored and looking for a multiplayer game to play on my wii with some friends.

What are some of the best? i already have wario smooth moves, Wii play and Wii sports.

Any multiplayers like Halo for the x-box or Killzone for PS2? some shooters would be great

Thanks for the help guys, :)

Well, theres not much in the way of shooters. All of the shooters so far have been quite a dissapointment, although there is far cry if your really bothered about a shooter and can't wait for MOH:H2

Mario strikers charged is a really good game and has online too so I'd reccomend that personally.