Which DS game has given you the most value for your money and time?

[dspartan2000]

Sonic Rush is a good game but with all these games,I haven't been able to get past the casino stage. Pity. I'm all hyped for Zelda. I'm someone who actually played Zelda on the NES back in the days and Ocarina of Time in my house is the most memorable gaming period in my life. I remember my sister and friends were all sitting around mesmerised, everyone trying to contribute to solving puzzles and the such.