Luckily, Garrett knows how to clean up his messes. You can pick up a body and dump it in the shadows, and use water arrows to wash off blood. The bow, while by far the most fun weapon, is not easy to use. A zoom-in feature helps while the string is pulled back, but the player has to compensate for distance and the arcing trajectory of the arrow. And, after a short while, Garrett's arm gets tired and wobbly and must lower the bow.
Graphics are extremely good, with each new arena showing beautiful architecture and lighting.
The textures can get somewhat monotonous, though, and as can be expected, the game is very dark. Happily, though, there are keystrokes for monitor gamma correction which help considerably. The controls take some getting used to, but the keyboard commands aren't difficult to learn. The most useful feature is the ability to lean left and right to peek around corners. After having it in Thief, I noticed how much I would have appreciated the ability to lean in a game like Rainbow Six.