DS Codebreaker

Code: There is this really cool thing you can buy called a code breaker that works for almost all of the ds games. You put it in the game slot and put the game in the slot in the code breaker and you can get millions of cheats!
Submitted by: Laura Jones - Pennsylvania

Cars

Secret Music Track
Code: Press Up, Down, Up, Down, A, B, X, Y at the press start screen.
Submitted by: Cory

All Cars
Code: yaycars

Nintendogs: Dalmation & Friends (Limited Edition)

10,000 points: When you give youre dog a bath leave the shower Head on the dog(not running) And leave it there for 3 hours.
Submitted by: Kacey Ramsey - Barton

Get $20,000
Code: L, R, Left, Right, Down, Up

Nintendogs: Daschund & Friends

Unlimited Trainer Points: All you need is a charger and a brush. Okay plug in your DS and take the brush and put it on your dog. you get 1 trainer point every minute. NOTE: turn down the volume and the backlight to conserve battery.
Submitted by: Josh Rolly

Beagle: Get 2,000 owner points to unlock beagle breed at kennel
Submitted by: Bo - Indianapolis, IN

Dalmation Pups: While on a walk if you find a fire fighter hat there will be dalmation pups at the kennel.
Submitted by: Taylor

Tip: When going into an agility competition take you're dog to the gym, then it is more likely to suceeed.
Submitted by: Hannah

Tip: The more times you take your dogs on a walk the more trainer points you will get. It is a fun and easy way to earn trainer points.
Submitted by: Katya - New York, NY

Unlock everything and become the best trainer in world
Code: Press X Y A B

Unlock Siberian Husky
Tip: Get 22,000 trainer points
Submitted by: Hunter - Evansville, IN

Infinite Cash
Code: 021A292C 3B9AC9FF 021A2FDC 3B9AC9FF
(NOTE... YOU NEED A ACTION REPLAY DS TO DO THIS CODE!)
Submitted: Michael Knoll - NY