Arakawa Under the Bridge - Season 2 - Eps 12: 12 Bridge * 2
The Mayor decides to hold a tournament to see who is strongest on the riverbank. The winner will be granted one wish, something the rest of the members must help make come true. In the first round, the weaker candidates fight in a battle royale, which P-ko ends up winning. She then faces the stronger candidates in a balloon popping match. Both P-ko and the Mayor pop each others balloons at the same time, and both lose. Two candidates now remain for the title of King, Maria and Sister.
About Arakawa Under the Bridge

Title: Arakawa Under the Bridge
First Air Date: 2010-04-05
Last Air Date: 2010-12-26
Status: Ended
Rating: 6.5/10 (from 34 votes)
Language: JA
Seasons: 2
Total Episodes: 26
Network: TV Tokyo
Genres: Animation, Comedy
Production Companies: SHAFT, AT-X, TV Tokyo, Square Enix, TV Osaka, TV Setouchi Broadcasting (TSC), TV Aichi, King Records
Synopsis
Ko Ichinomiya's family motto is "Never be indebted to anyone," but after losing his pants and falling into the Arakawa River, he quickly finds himself in debt to his savior, the cutely insane Nino who happens to live under the bridge. To repay her, he vows to help her with her desire to "experience love." Along the way he'll meet the river's other residents, including a hot-blooded kappa, a Sister in drag, and a literal rock star.
Cast

Hiroshi Kamiya
Kou Ichinomiya (voice)

Maaya Sakamoto
Nino (voice)

Keiji Fujiwara
Village chief (voice)

Takehito Koyasu
Sister (voice)

Chiaki Omigawa
P-ko (voice)

Miyuki Sawashiro
Maria (voice)

Tomokazu Sugita
Hoshi (voice)

Chiwa Saito
Stella (voice)

Yu Kobayashi
Amazoness (voice)

Cho
Terumasa Takai (voice)