Cyborg 009 vs. Devilman

Cyborg 009 vs. Devilman (サイボーグ009VSデビルマン) is a 2015 three-part original video animation (OVA) crossover between Shotaro Ishinomori's Cyborg 009 and Go Nagai's Devilman. Produced by Actas and Bee Media animation studios, the OVA depicts Cyborg 009 and his team discovering the existence of demons in Tokyo and clashing with Devilman, who is believed to be in league with the Black Ghost organization. Meanwhile, a greater threat emerges when Dr. Adams, a Black Ghost scientist, unleashes his new line of High-Teen Number cyborgs against 009 and his comrades. The OVA's story takes place before the Armageddon arc of Devilman and the Underground Empire arc of Cyborg 009, thus existing as an alternate universe. Spin-offs include a manga titled 'Cyborg 009 vs. Devilman: BREAKDOWN' and a prequel novel titled 'Cyborg 009 vs. Devilman Treacheries: The Traitors.' The anime has been streamed on Netflix in multiple languages.