Rydia’s minigame is one that depends on speedily getting through math problems. If you close your DS after grabbing the four numbers you have to work with, however, the game will go to sleep, essentially freezing the time spent. Grab a pen and paper and write the numbers down. Work out the math, and once you’ve figured it out, flip the DS’ lid back up. Quickly insert the necessary answers, grab the next four numbers, shut the lid, and repeat. This will get you the maximum 9,999 point score.