Yu Yu Hakusho Dark Tournament is based on an anime series. Yusuke Urameshi, the main character, is a 14 year old. He was killed and brought back to life, and now is able to see ghosts.
The game puts Yusuke into an arena tournament fighting situation, with the familiar friends and foes from the show. There is a training mode to help you get started, and skirmish mode to practice your moves. Then there are arcade and dark tournament modes to get you into actual gameplay, moving through levels of difficulty.
You can't really compare the graphics in this game to other fighting games like Mortal Kombat. The point of Dark Tournament is to feel like you're immersed in the Yu Yu Hakusho world, and it does this quite nicely. The anime style and backgrounds are all very much of the Yu Yu Hakusho style. There are several different arenas to fight in, and many characters to choose from. Each character has his or her own style and look.
In addition to the basic fighting game, there is also a built in "token game". You earn tokens when you fight. You then move to the token game to use them. The token game is very much like a strategy card game, using a hexagonal based board. This addition makes the overall game much more long term. You have incentive to keep fighting, to earn tokens. Then in the token game you can build up your token stash to do better and better.
Definitely a game that any Yu Yu Hakusho fan will love, and play for a long time!