Pokmon: Generations is an official, Nintendo DS game based on the hit Japanese cartoon series. It is the follow up to the very popular and successful Pokemon Diamond. It's not a bad game, but it does lack some of the charm and fun derived from Diamond. It's not bad per se, but lacks a bit of the "wow" factor that Diamond has, and it doesn't really live up to expectations.
Pokmon: Generations is an animated Japanese-animated original web-based original net cartoon series created by Xatoku and released in YouTube by The Pokemon Company. The story is in the vein of the famous Japanese anime series Lupin the Third: "The Third Gift". Players control the main character, a young boy who has somehow been transformed into a dinosaur. He travels around hunting down other dinosaurs, like his father, only to find that all of them are turned into Dialga, Palkia, and Meloetta. These aren't your traditional fighting creatures, mind you; they're actually good friends. When he battles them, he must defeat each one before he can join his father in battling against Team Galactic.
I admit that this game takes a while to get going (it's understandable - it's a Nintendo DS game, after all). The story, dialogue, and overall presentation take a bit to catch up, but once you do, it's a really nice ride. Unfortunately, it's not quite as deep or engaging as Diamond, but the engaging nature of the games on the Nintendo DS is definitely better. If you have an opportunity to check out the DS version, I would definitely recommend it.