Firstly, this isn't really a game called Digimon World 6. This game is Digimon Story, translated into Digimon World DS. Chronologically, in America, it would be Digimon World 5.
To start things off, this is a really fun game. The premise is that you are a human who is brought to the digital world to raise digital monsters, or digimon. Throughout the game you can raise your digimon from Baby to Mega levels, even degenerating to make them more powerful. Furthermore, there is a training area, called a digi farm, where you can put your digimon to grow while you are out battling.
The game is an RPG. You gain levels and stats increase, allowing you to digivolve once certain requirements are met. You can also equip swords, shields, and accessories.
You can own over 200 digimon, and choose to make your favorites as powerful as they can be.
If you are a fan of the show, it's great to see your favorite digimon show up in the wild, be it Gabumon, Angemon, or even Myotismon.
North America is introduced to Digimon Savers, the new series running in Japan. There are many character that appear in the game that are from the series.
The game can be a bit glitchy. Some things may not load right away, and I once experienced the top screen, which holds the digi farm, turn black. This was remedied by entering the digi farm and talking to one of my digimon.
Some of the evolutions of the digimon aren't the same as the television series. Angewomon doesn't evolve into Magnadramon, Impmon doesn't evolve through to Beelzemon...Matadormon doesn't become Grandracmon and so on. It's not a bad thing, just a tad dissappointing to the die hard fans such as I.
All in all, Digimon World DS is a great game. It follows the RPG genre very well, creating an enthralling world for players. One warning though, just because you may be a Pokemon lover doesn't mean you will like this game. The style and speed of gameplay in both games are very different.
You should purchase this game if you are a fan of the Digimon series, the RPG genre, or are just looking for a fun game to put 30 plus hours into.