- for the Manga version see Amon: The Darkside of The Devilman
Amon the Apocalypse of Devilman in a 2000 ova adaptation of the manga mentioned above. Its got gore and violence but personally I don't think its as hard core as some other anime oav's by go nagai
On May 24, 2000, a loose adaptation of the first volume of Amon: The Darkside of the Devilman was released. Being based on volume 1 of the manga (no other volumes were released at the time), it is much shorter than the manga, and branches off in an entirely different direction shortly after Amon gains control of Akira Fudo at the end of volume 1.
In the OVA, fear runs rampant throughout Tokyo as paranoia grips the population who believe that demons exist among them. Akira is seen coming to the aid of Miko and Yumi, two female members of his team of demon hunters. Later, at Miki's home, her brother Tare watches a video of Akira transforming into Devilman. Before he can tell Miki, a group of vigilante demon hunters corner and kill him. When Miki comes down the stairs, she is attacked and decapitated. Ryo Asuka goes on TV and stirs unrest and violence by warning people to be vigilant against demons. Later Akira sees the group of vigilantes with Miki's head. He loses control and transforms into Devilman and kills them all in a sea of blood. Devilman is told his Army is combating a squadron of demons led by Selos. When Akira arrives Selos gives Akira the option to join his army or die. Akira responds by destroying the building. Amon emerges from the ruins, having been liberated from Akira's body and Selos' demons attack him, but Amon is far too powerful for them. Amon finds the young Yumi under the rubble and bites her in half, ending her short life. He then confronts Selos. They engage in a citywide titanic battle but Amon is far too strong and kills Selos. Amon then finds and attacks Satan who tells him that Akira still exists. Amon confronts Akira in a wasteland. Akira transforms into Devilman and they fight, but Amon is far stronger and savagely beats Devilman. Semi-conscious, Devilman's mind drifts back to his life as Akira and time with Miki which gives him the strength to retaliate and destroy Amon. The OVA ends with Akira and Ryo Asuka (who is Satan in his human form) facing each other as if to fight (as they did in the original Devilman manga), but Akira slowly walks past him