Shimatta is a red panda, held at Namimori Animal Park. He is the only red panda in the world that zen meditates. When he meditates, he can't hear or feel anything until the meditation is over. Shimatta was seen when Tsuna and the others visited the zoo. He had climbed all the way to the roller coaster to meditate. When he was about to get run over by the roller coaster Tsuna saved him. Kyoko was really excited to see him and was terrified when he was in danger, which was also Tsuna's motivation to save Shimatta.
- "Shimatta" is an exclamatory swear word in Japanese, along the lines of "oh no!" and "shoot!"