Great, but really no so great, depends on how much you look at the problems of a game... but only best option for the DS
First of all all areas look so much a like that it is easy to get lost, and end up going in circles, than dieing, and having to restart the chapter from the beginning, as well as losing all guns, keys, parts of the puzzle or anything else you have gained. The save system is no better. Every time you open a door, the game saves, which is alright I suppose, but regardless of how many doors you open, if you die, look forward to restarting the game.
The story line is pretty complicated, and leaves a bunch of questions unanswered, resulting in hopes of a squeal. Unfortunately there is none announced to come. Guns are easy to over look, and this could actually come to a disadvantage on certain bosses in which the game was designed to fight against. Life drains quickly with very few amounts of life kits hanging around. The game is dark, there are hardly any lights in the entire game, which forces you to use a flashlight, than in order to fight a monster, you must change from your flashlight to a weapon, than back again in order to see whats in front of you.
Most of the puzzles are very difficult, and will have you circling an area for hours before finding what you are supposed to be doing. Like for example there is a puzzle where you are supposed to count the eyes of the dead corpses, but you count them and they really do not add up, forcing you to look up a walk through. The first boss is the hardest that I have faced in the game, everyone after had just seemed to get easier, and easier.
Though the graphics are nice, and there is quit a bit of blood all over the walls, and the floors, and it does have a scare factor in the game, even more so for those who hate hospitals. The game only depicts the story line at the start of the game, and at the end of the game, with only stupid inappropriate parts in the middle, than it concludes the story line at the end of the game.
Despite all of these inconveniences the game is still worth playing, and is actually still a great first person horror adventure game. I would not really recommend this game, but for the system, this is really an only option.