best ds timesuck?

hey everybody,
next month, i'll be stuck on a beach for 8 days with no laptop.  i'm not so good at the relaxing bit, so i'm looking for a few good ds games to take up my time. a lot of it. got any suggestions?

Hmm...Animal Crossing?

Tom Nook: "Get me my money!"
Player: "Ok"

*player goes on 1 million little errands to get the money*

Tom Nook: "Ok, now you owe me more money"

Tetris DS, and I think N+ is out this week, that game is a lot of fun.

Elite Beat Agents, my guiltiest DS pleasure.  The beach is perfect for this game because no one will catch you playing it.

An RPG would be your best bet, Final Fantasy 3 was good.

Tetris DS.

Metroid?

I havent played many DS games but i enjoyed that one