3DS version (cat).

"Basic, everyday food for active and healthy kittens."
— 3DS description (cat food), Nintendogs + Cats

Dry food is the basic default food for pets. In Nintendogs + Cats there is both a dog and cat version of this, both of which can be bought for $3 and sold for $1.

The cat food is placed in a large red bag with a picture of a cat sitting under the blue-outlined words, "Dry Food".