Okay, Im having a problem with the chocobos here. To get green, you need a male good chocobo from gold saucer and a female great chocobo from Mideel. Combine them and you get a green mountain chocobo. Do the opposite to get the blue river chocobo. The only problem is, they are all green! The chocobos are never blue! Note that this is my second time playing through and that I didnt have this problem at all last time.