I think that this is what the horror genre should look to for a guide, but it really needs a touch up.
"Sigth jacking" is a mechanic which allows you to enter the head of a shibito (the enemies of the game) and see what he (or she) sees. This lets you know if the shibito is looking in your direction, or if he sees your partner (if you have one). You can map the shibito to a button so that you can easily find him later, if you need to. This sets the game apart from other games, as it lets you know where the guy is. The action is mostly stealth based, though don't expect a Splinter Cell caliber sneaking experience. The limit of your abilities is the crouch and flashlight off. The weapons are few and far between, but if you get a character who starts with a gun, he will have full ammo for it if you play as the character in a later stage. The melee weapons are not very effective, as they require you to get uncomfortably close to the shibito. The game has several stumbling blocks, which are apparent from stage one; first, the game suffers from sub-standard voice acting (why are japanese people speaking in a solid BRITISH accent?) This would be forgivable if the game provided a way to get Japanese voices, but there is none. The other major stumbling block of this game is the complexity of what it takes to perform a simple action like unlocking a door. The menus force you to carry out all the actions instead of bridging them with a single command. This becomes tedious as the shibito is going around, trying to kill you.
This game is scary, effective, and very fun to play, especially the story. However, don't shy away from it just from the menus and acting. The rest is good. Very good.