Originally Posted by Skyblade
Currently, I'm at SeeD rank 21, and I have not as yet taken any tests. I started at rank 9 (I killed X-ATM092 and followed the other main rules during the SeeD test). Some of the events in the game (such as the train hijacking in Disc 1), will boost your SeeD rank if you complete them on your first attempt (or reload the game. But not if you just choose the try again command). Other than that, I just fought keeping my health as low as possible. Keep it in the yellow for all three team members, never run away unless absolutely necessary, and don't use Enc-Half/Enc-None, and you should be able to boost your SeeD rank about 1 rank every 2 or 3 paydays.