The first thing you will notice about this game on the DS is the brilliant graphics, they really have done a good job of converting this to the hand held console and looks almost as good as the wii version (please see my review). I was quite surprised at how much they have managed to cramp onto the small cartridge and, like the wii version, it is one of the most comprehensive games for the DS. Although this isn't quite as good as the wii game as some of the games are slightly easier to lay and complete, they are still good fun and a very good challenge.
The best thing about the game though is the more you play it, the more you unlock and there are some brilliant additions to the game in there. These include more events which will add so much more to the gameplay and will require different skills to master. In fact I would say this is one of the biggest games on the DS because there is so much to do and unlock. For example getting silver medals may unlock emblems or getting gold's may unlock other events. Sometimes all you need to do is take part in an event a few times and something will be unlocked which can be very rewarding and makes you want to play it more.
Archery is really good fun and brilliantly done on the DS as it requires quick reactions and a steady hand. pulling back with the stylus will give you a target to hit and you must try and line this up with another target to shoot it straight. Sounds complicated but it works really well and when you factor in the wind it can be a little bit more tricky to score higher points.
The track events require different skills again and will have you moving the stylus from side to side to build speed in the running events, but in the long jump you will also then need to draw a diagonal line at the right time to make the jump.
All in all this is well worth buying as it is fun, challenging and has brilliant graphics and gameplay. Not quite as good as the wii version but gets an honorary gold medal.