Jonouchi's Digital Pet
|Manga debut||Yu-Gi-Oh! Duel 21: "Digital Pet Duel"|
|Jonouchi's Digital Pet|
Jonouchi connected his pet with Yugi Mutou's pet, U2, for a data exchange. As Digital pets commonly took after their owner, Jonouchi's pet began to bully U2, like how Jonouchi used to bully Yugi. The two pets became friends afterwards, similar to Jonouchi and Yugi.
When Kurirada tried to feed U2 to his pet, using the data it incorporated from its data exchange with Joe, U2 became more powerful and was able to defeat Kujirada's pet.