Ditto on Elite Beat Agents.

Nothing is quite as satisfying when you ace Jumpin' Jack Flash on Sweatin' difficulty and be surprisely rewarded by the ultra cute trios called the ELITE BEAT DIVAS.

If you thought it was strange playing thru 3 difficulty levels using male dancers .. well .. let's just say the Elite Beat Divas gives the game an entirely new perspective and challenge once you unlock them!

Multiplayer is fun too with competitions based events like Iron Chef, guitar competition etc.

A truly great Touch Generation title.

Warioware Touched - still a blast to play. A collection of quickfire quirky mini games that you gets faster and faster over time. How quirky? Like digging your nose, scratching your armpits, blowing balloons and inflatable dolls (literally by blowing your breath into the mic!). Its a perfect showcase of the abilities of the DS and the versatility of the stylus and the mic. Its a game for all ages.

Age of Empires - if RTS is your thing. Its a nice time sucker during flights. It'll you want to know more and brush up on history too when you play characters like Richard the Lionheart and Joan of Arc.

Dragon Quest - those darn frantic tank battles!

Cooking Mama - i dont know why this game never took off but hey .. its the ultimate chick game! Not much depth but these kinds of DS games are meant to be pick up and play affairs anyway - so for your 15 min fix, its a relaxing play cooking Salisbury steak and gyoza ..

Mariokart - this is killer app goodness at its best. And if you so happen to have multiple DS's at home (i have amassed 6 over the past 1.5 years - for equality and sanity's sake's of those at home) - the multiplayer racing is just insane and brilliant. Hard to beat the fun factor you get from a single card. I play multiplayer Cardhouse Games as well but heck .. there is no more simple pleasure than beating the crap out of each other in Mariokart.