Nintendogs: Chihuahua and Friends

You can obtain trainer points by spending time with your dog, brushing it, bathing it, walking it, and entering it in competetions. Basically, just play the game, and you will get trainer points. For every minute you spend with your dog, you get one trainer point. You can walk your dog every thirty minutes and enter it in three competetions a day. Remember though, that is just for one dog. If you have eight dogs, you can go on an endless cycle of walks and enter twenty-four competetions a day.