Gokudou Sakaba Denden: Gokudou Daisensou Gaiden
Japanese title: 極道酒場でんでん～極道大戦争外伝～
Alternative titles: Yakuza Bar-Room Denden: Yakuza Apocalypse Side-Story
Type: ONA
Source: Unknown
Episodes: 3
Status: Finished Airing
Aired: May 30, 2015 to Jun 13, 2015
Duration: Unknown
Rating: PG-13 - Teens 13 or older
Studios: DLE
Genres: Comedy

The three-episode anime series is a spinoff of the upcoming film Gokudou Daisensou (Yakuza Apocalypse). The series will stream on GYAO! starting on May 30, and Movie Channel NECO will broadcast the series starting on June 5.

As in the film, Denden will play the boss of a bar, but with a snail motif. The actor's stage name, in part, comes from dendenmushi, which means "snail."

(Source: ANN)