A game with much potential that was unfortunately exploited sparingly.
The story is kind of sad and you can understand why Kurenai embraced the ninja clan that took her in and vowed revenge. Being hung by a tree, bleeding and barely alive can do things to you. What's not clear is her relationship with the other clan members, apparently everyone is close but there is an emotional distance which leads to awkward moments between characters, mostly due to bad writing and characterization.
Kurenai's wardrobe is also something to be noticed. I'm sure the designers were going for maneuverability here as well as sex appeal, but it's really ridiculous how short her robe is. It happens to end just beneath her butt cheeks, and when you move the camera in certain angles you can see up her dress. Maybe that's all there is to it, but it can be distracting and it also doesn't seem very practical for a deadly ninja to leave so much flesh bare. The camera is a little off too, it is always struggling to stay behind you so you can see forward, but if you want to look around a room for any hidden objects, good luck. It gets really annoying when you're in a small or crowded area and you're trying to target an enemy.
The controls are simple but unique, playing off of the versatile nature of the wire weapon Kurenai uses as well as her training. One thing that seems to not work so well is the wall runs. You have to gain enough speed to be able to run a certain length of wall, and if you weren't running fast enough before you hit the wall it'll propel you away from the wall in mid-run. This can be very frustrating as sometimes there won't be a lot of running room to work with, or you may not know where exactly at the wall you're supposed to be aiming in order to initiate the run.
This game had some great potential, but after running into trouble involving the above wall-run skill, I stopped playing it midway through the game. I may never play it again, despite having been excited for it during its release date. I can see now that the hype was misplaced and the creators were not using game testers to their advantage enough.