夏日大作戰
"" was originally released on March 4, 2000. In the film, Tai and Izzy find a virus Digimon who Digivolves into Diaboromon, resulting in him infecting the Internet and launches nuclear missiles towards their home. The film introduces DNA Digivolution through Omnimon. The film's ending theme song is by AiM. The film grossed ¥2.166 billion. "Our War Game!" later served as the inspiration for director Mamoru Hosoda's film "Summer Wars".