Wrestling has Hulk Hogan, boxing has The iron Mike Tison and Video games have Tetris.
Tetris ds is fun , as soon as you play it , it will first suck you in like a black hole for a couple of hours, then your mind will put the foot on the break and it will not suck you in as much.
Tetris ds has a bunch of modes push , puzzle, touch ,catch, standard and mission. push will pit you againt dk and you will have to make drop more tetriminos on his side. puzzle will give you a bunch of tetriminos and using them you have to take out the tetriminos on the screen. touch is using the stylist to play fun and interesting modes.Catchwill give you a plus shaped tetrimino and the blocks will slowly fal and you will have to make 4 times 4 squers or biger. standard is just old school tetris you can enjoy. mission is similar to standard but you will get objectives and you will have to complete them within time limits.
There are also multiplayer against your friend. But the bigest interesting thing is wi-fi.If you are not good just stick to your friends and single player,because they will dliteraly dominate you, but you might find a noob and smoke him(unless your a bigger noob). After all that i said you might think that its perfect but, unfortunatly not . It gets boring in a week.
In the end I think you will enjoy the game if you take it slow.
Enjoy!!