So I'm going to be on a plane journey next month and I'll be requiring some games on my M3 to pass the time in the departure lounge. I put on some RPGs like Mario and Luigi and Summon Nights but recently I just got into Sudoku and was wondering which is the best that's out so far on the DS? So far I tried the Brain Training one or is it a case of, "they're all pretty much the same". I'm also open to any other time wasting game to play on the plane (do they even allow DS on planes?).