I finished the campaign in a day and I would have to say it is . The single player is nothing like the perfect dark for the Nintendo 64. The campaign is very short, for instance in only took me a day to beat it. And it has a disappointing story. The game is hard to follow, it is highly fictional and isn't that different than an Indiana Jones movie. Also the ending is not well thought out and the last boss scene is quite easy. Another issue is the cover system. It isn't very fluid and it takes some time to get used too. In the end I only used the cover system about 10 times in the whole game. However there are positive things that keep this game from getting any lower than an eight. The combat is medium paced and there is a large number of weapons. Most come with alternative fire which makes firing them interesting. Along with that the game comes with a fun multiplayer and an good co-op mode online and off. You can play multiplayer with bots which is alright, but the multiplayer really stands out online with up to 16 players. There are a variety of modes and maps, and you can adjust many things with the match such as the size of the map(ex 1/2 size 3/4 size etc.). Overall Perfect Dark Zero isn't perfect, it can be fun and challenging so if you don't pay more that 20$ i recommend it to you.