Phoenix Wright

The Phoenix Wright games may not seem like much at first glance, but they are, in my opinion, the best games available for the DS. The games' captivating storyline, unique gameplay, colorful characters, and superb localization combine to make it one of the most enjoyable portable gaming experiences ever.

There are 3 games in the Phoenix Wright trilogy:
Phoenix Wright - Ace Attorney
Phoenix Wright - Justice For All
Phoenix Wright - Trials and Tribulations

In the game, you play a defense attorney, Phoenix Wright, who must defend your clients who have been convicted of various crimes (usually murder). Each game includes 4 or 5 separate cases, where each case takes around 2 to 6 hours to finish. The cases are all different, and played in order, they reveal a captivating backstory that rivals that of many films and novels.

The final case in the last game was so gripping, in fact, that I managed to stay up until 4am without even realizing it. Let me just say: it was awesome!