Take it in your hand luggage, there are plenty of electronic thieves out there, and even though you get your money back from the airline company, it kind of sucks to lose your stuff (happened to me).
For the other stuff, sorry no clue.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS