Okay, Maken is a sentient sword (a sword with a brain). As the sword, you can take control of about a dozen different characters throughout the game. Basically, it's a first person shooter, only with a sword, not a gun. To be honest, the game is just not fun. It looks good, but the controls are awkward and it's just boring - twenty levels of boring. The 'brainjacking' is kind of neat, but it's still a bad game. From what I understand, there are several different endings, but if you make it to more than one, you're a better man than I am. Another cool thing about the game is the lock-on target feature. This helps with the awkward controls a bit.
Here is the game - run around and hack at people. You can jump, strike, 'brainjack', and manipulate objects. Uh ... that's it. The story line is weak, and the game gets old fast. I had high hopes for this one, and I was very disappointed.