http://www.ehow.com/...ame-review.html
http://www.youtips.n...me-game-review/
http://www.thecomput...ritereviews.htm
Some things I found by just looking up 'how to write a game review'.
A few game types that alot of people seem to have problems reviewing are:
1) Their favourite game of all time - These always get a great score despite their obvious pitfalls in some cases (Legend of Dragoon and FF7 spring to mind)
2) A highly/lowly scored game on other sites - I mean, if IGN gave a 'My Little Pony' game a score of 2.0 but it was actually not half bad, don't be afraid to give your honest opinions on it. (FF 13, CoD series, Children of Mana)
3) Games that are part of a very popular franchise. or one of their favourite franchises - I didn't enjoy the Zelda DS games despite the fact that I somewhat enjoy Zelda. Am I possibly going to annoy legions of Zelda fanboys by giving a bad review? Likely.. But you need to be able to be objective. (Zelda, Final Fantasy, Pokemon)
4) Retro classics - Selling Air Raid or E.T for the Atari 2600 as being great games is harder to do seeing as it is literally generations behind the current consoles. Take off those nostolgia goggles and remain fair about it.
It is also a good idea to come into the game playing it like you have never played it before.. Using FF 13 as an example (Seeing as it is almost globally critisized).. It's extremely Linear, somewhat confusing story from the start of the game, gated character progression, no towns, different battle system. I didn't mind these things at all since I felt that they worked given what the game actually was. If I were to write a review, I'd address some things such as the maps being linear and understand why people would be mad about it, but if you remove the expectation of open-world exploration and take it as it is, you might enjoy it