How do you train your Nintendogs play dead on plus cats for 3ds?

Unfortunately, you can't train your Nintendogs to play dead in the 3DS version.

While some classic tricks like "sit", "stay", and "fetch" are available, the "play dead" command is not included in Nintendogs + Cats for the 3DS.

This feature may have been present in earlier Nintendogs games, but it's not available in the 3DS version.

However, you can still enjoy a variety of other tricks and games with your virtual pets on the 3DS!