Mouse Sushi (ネズミ寿司, Nezumi Sushi; Viz: Nezumi Sushi) is a popular sushi restaurant in S-City.
Metal Bat accompanies Narinki and his son Waganma to Mouse Sushi, where they eat sushi from a conveyor belt. Junior Centipede and Venus Mantrap attack the restaurant in an attempt to kidnap Narinki and Waganma. Metal Bat quickly defeats the monsters. Two other demon level monsters appear: Senior Centipede and Rafflesidon. Metal Bat kills them both as well.
- The word cafe is improperly spelled "cafee" on the signpost in the Japanese version.
- The Japanese character on the signpost (猫) means cat.
- Diners can earn a stamp for every visit. 20 stamps can be used to redeem a T-shirt with the Mouse Sushi logo on it.
- Saitama filled out a stamp card and won a free T-shirt.
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