Hamukatsu

Hamukatsu is first introduced in Duel Masters Versus season of the Duel Masters Anime.

Plot
He was Katta Kirifuda's pet hamster. Katta received him from Lulu Takigawa as a companion.He always accompany Katta,even when he was dueling. He even have a liking for curry buns.

In episode 26,he accompanied Katta and Lulu during their school trip.Both him and Katta were tied up by Gyou when Katta intercepted Gyou's attention. When Lulu lost,he bite through the bandages to free Katta. When Katta was affected by Gyou's poison's,he was to tell Lulu about his situation. He managed to return to the hotel to tell Lulu that Katta was fighting Gyou.Lulu gave him curry bun to give it to Katta and made it on time to cure Katta and Katta managed to win the duel.

In episode 30,he and Katta was brought to the deserted island.When Katta was dueling Dragon Ryu,he and the other hamsters in the sunflower field brought him curry bun. Katta brought him up to his side and was also equally surprised as Katta when Dragon Ryu and Reiko combines.