Here is my review of Pokèmon Mystery Dungeon: Explorers of Darkness.
First off, Graphics. Very GBA'ish, but I'm not necessarily saying that as a bad thing. Better graphics may have made the game feel a bit weird, but they could've been better, just not TOO much better.
Second, gameplay. The very turnbased battle system of just hitting A or L+A for attacks can be very boring. But, the RPG elements really makes it about strategies about how to perserve "PP" and so you won't get knocked out by type-disadvantages. The system of pick and job AND an outlaw really puts a lot of choice, and with even MORE dungeons... well, it really brings what it offers. And the recruit system is better than ever without having to buy and visit those pesty friend areas, you now just have 1 place, and it's so easy! Plus, theres over 490 pokemon in this game, making it very different each time.
Lastly, plot. My god, this plot is incredible. I won't reveal anything to you, but I will say that the guy your chasing after was actually trying to SAVE the earth from something called "Planet paralysis" and you find a huge secret about your charectar, but I won't reveal anything :D. Anyways, the plot is put together perfectly.
Overall, I believe that if they just tweaked the graphics a bit, and if they somehow spiced up the attack system, this game would be incredible.