Since this thread has been pulled from the grave,
Dino Land is also a very good pinball game for DrMD on the GP32. Plays very well and is sort of wacky pinball. A lot of fun.
If you are into horizonal shooters, like I am, then try out "Double Ring" also called "W-ring." This is for the GPengine on the GP32. Awesome grafxs, music, and gameplay. It is sort of glichy, but it plays well. Sometimes when you start the game you can't see your own shots, sometimes you can. This game, to me, shows off what the little PCE could do and it is impressive. For a good shooter the grafx, music, and gameplay has to be in total harmony and that is "Double Ring." Gameplay has that Gradius, R-type feel to it, that gives you the feeling that these guys played them. The enemies come at you relentlessly. This game is not as difficult as R-type, more of a joyride. The bosses, once you learn their patterns, are really not hard, like I said "a joy ride." Over all the game seems short, but maybe that is because I wanted more. It is best played on a BLU. And even then you will want to turn the brightness up all the way. I have tried it on my NLU and it was one of those games that were difficult to see all of the eye candy and shots being fired at you.