Sumo Brothers (ごっつぁん兄弟 Gottsu~an Kyōdai Thank you Brothers) is the 31st minigame that has introduced in Rhythm Heaven Megamix. In this game, the player controls a Sumo wrestler, who is in an intense (though evenly matched) Sumo Wrestling match with his brother.
The player must follow rhythm cues from the Inu-Sensei in the center as follows:
A don don don don (four drum beats) indicates slapping; after the fourth don, the player must press A every beat.
A kon, kon (two woodblock beats) indicates stomping; after the second kon, the player must press A every other beat.
A piiiiii~ (one long whistle) indicates posing; the beat after the end of the whistle trill, the player must press B to pose.
A: Slap or Stomp
Simple Tap Mode
Tap: Slap, Stomp, or Pose
Hit: With the normal slap, the player's hand collides with the other Sumo's hands and creates a slapping sound. With the stomps, the player stomps in time with the other sumo and creates a strong stomping sound. With the pose, the player will pose along side the other sumo, before returning to slapping.
Barely: Slapping: The player's hand collides with the other Sumo's hands, but a "tik" is heard. With the stomping, the strong stomp sound is replaced with a quiet "tik" sound and the player's eyes open wide. It is unknown whether this counts as a hit or miss, and with the pose, the sumo bros pose but the players eyes open wide and no picture appears in the background. In all cases, the Inu-Sensei makes an annoyed look.
Miss: With the slapping, the player will lean backward as a 'doink' sound replaces the slapping sound. With the stomping, the player will fall backwards but quickly get back up. With posing, they will fail to make a good pose and will be replaced with an idiotic pose by the two.
"Gottsuan" (Japanese: ごっつあん) is a word for "thank you" mostly seen when it comes to Sumo matches.
There are two real-life paintings depicted during the pose moments.
The first painting that appears is widely known as Otani Oniji III as Yakko Edobei. It was painted by Sharaku in 1794.
The second painting that appears is known as The Great Wave off Kanagawa that was painted by Katsushika Hokusai from 1830–33. This painting is known to be an icon of Japan as it is seen all over Japanese culture.
This is one of the Rhythm Games to have vocal noises in the background.