I mostly only do reviews on games that I have... The red pikmin decides the graphical and animation score, Blue pikmin decides the gameplay and funfactor score, yellow pikmin decides the replay value and any thing else like multiplayer's score. 5 is the best score and if a game gets a perfect 5, it gets the gold pikmin award. MUST BUY! 4.5 is silver. most people will love it. And 4 gets silver pikmin award. Try it out or buy if intrested, 3 is average!
~UPDATE~
Now it's in out of 10. the 5 one was too small... so perfect 10 gold, 9 silver, 8 bronze. These are average scores by the way..