I have had Metroid Prime Hunters, and I must say it's multiplayer is easily the best I have seen on the DS. The sheer amount of options when battling friends and rivals truly make the game great. The only bad thing is that fighting random people via find a game is very tedious and troublesome. Luckily, the other multiplayer aspect more then makes up for it. If anyone has the game, send me your friend code, mine is:

1289
1675
9861

Can't wait to see you on the battle field.