What is Grandpa Danger?
{{Infobox animanga/Header | image = | caption = | ja_kanji = 絶体絶命でんぢゃらすじーさん | ja_romaji = Zettai Zetsumei: Denjarasu Jii-san | genre = [[Adventure]], [[Comedy]] }} {{Infobox animanga/Print | type = manga | author = [[Kazutoshi Soyama]] | publisher = [[Shogakukan]] | demographic = [[Kodomo|Children]], [[Shōnen manga|Shōnen]] | magazine = [[CoroCoro Comic]] | first = October 2001 | last = March 2010 | volumes = 20 | volume_list = }} {{Infobox animanga/Video | type = tv series | director = [[Yorifusa Yamaguchi]] | producer = Naohiko Furuichi<br />Takeshi Sasamura | writer = Isamu Sasagawa | music = Makoto Takou | studio = [[Studio Hibari]] | licensee = {{English anime licensee | NA = [[Viz Media]] }} | network = [[TV Tokyo]] | first = April 4, 2004 | last = March 27, 2005 | episodes = 51 ''(5 minutes per episode)'' | episode_list = }} {{Infobox animanga/Print | type = manga | title = Dangerous Jii-san Ja | author = [[Kazutoshi Soyama]] | publisher = [[Shogakukan]] | demographic = [[Kodomo|Children]], [[Shōnen manga|Shōnen]] | magazine = [[CoroCoro Comic]] | first = April 2010 | last = February 15, 2017 | volumes = 20 | volume_list = }} {{Infobox animanga/Video | type = ova | title = Dangerous Jii-san Ja | director = [[Takashi Watanabe]] | producer = | writer = | music = [[Hyadain]] | studio = [[J.C.Staff]] | first = July 27, 2012 | last = November 22, 2012 | runtime = 30 minutes | episodes = 2 | episode_list = }} {{Infobox animanga/Video | type = tv series | title = Dangerous Jii-san Ja | director = [[Takashi Watanabe]] | producer = | writer = | music = [[Hyadain]] |