I'm Glad that you people like them! this is Great! and for anyone else who sees this and is  like "i didn't play them ill see what one makes the best them play that one". the fact is that they are almost the same game. if you actually have it for the Game Boy and not the ROM (since Roms can differ on occasions, i have had it happen)the only real difference that you see is that the main colors are blue in Pokemon blue and red in Pokemon red. there are a few Pokemon that are in one and not the other. But that can be solved with a trade. and for anyone who was wondering, i'm not positive about this but i think that Pokemon Blue(at least in North America) is the most common one that was bought/still exists. Possibly since it is and was in the 90's a lot of people's favorite Color.