Urusei Yatsura: The Shougaibutsu Suieitaikai
Japanese title: ザ障害物水泳大会
Alternative titles: Urusei Yatsura: Za Shougaibutsu Suiei Taikai, Urusei Yatsura: The Obstacle Course Swim Meet, It's a Rumic World: Urusei Yatsura
Type: Special
Source: Manga
Episodes: 1
Status: Finished Airing
Aired: Jul 30, 2008
Duration: 27 min
Rating: PG-13 - Teens 13 or older
Studios: Sunrise
Producers: Atelier Musa
Genres: Action, Comedy, Romance, Sci-Fi
Themes: School
Demographics: Shounen

On a very hot summer day in Tomobiki town, Lum, Ataru, and the rest of the gang are looking forward to using the school's pool. But the teachers have other plans: setting a ludicrous obstacle course between the students in their swimsuits and the pool... naturally this ends in complete chaos.

(Source: AniDB)