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Nintendo DS - Nintendogs: Best Friends cheats

Earn the indicated amount of owner points to unlock dogs 
and other objects:

Number of owner point - Unlockable
Earn 300 pts. - Unlock Balloon
Earn 300 pts. - Unlock Jump Rope
Earn 300 pts. - Unlock Pull Rope
Earn 2000 pts. - Unlock Shih Tzu
Earn 4000 pts. - Unlock Shetland Sheepdog
Earn 6000pts. - Unlock Desktop room
Earn 8000 pts. - Unlock Toy Poodle
Earn 10000 pts. - Unlock Boxer
Earn 10000 pts. - Unlock Natural Dog Food Bag
Earn 10000 pts. - Unlock Windup Toy
Earn 12000 pts. - Unlock Seaside room
Earn 18000 pts. - Unlock Outer Space room
Earn 25000 pts. - Unlock Ranch room
Earn 25000 pts. - Unlock Urban Living room

Remove saved games: 
Hold L + R + A + B + X + Y at the Nintendo logo.