Crazy guro hentai by Shinichi "Nabeshin" Watanabe of Excel Saga fame. The plot is like a parody version of Legend of the Overfiend (1987), with Apocalypse Zero (1996) visuals and 90s slapstick comedy gags. Episode 1 is seriously funny, self-aware and definitely worth watching. Even more so when one like myself is a fan of cosmic horror and end of the world scenarios brought on by sexualized grotesque demons. This show can go one step beyond Wicked City (1987) as it's actually Rx rated. The biggest asset of episode one is that it doesn't take itself seriously. Episode one is a little guro hentai comedy gem, the only other similar specimen I can think of is Yarima Queen (2000). Note: Nabeshin's trademark cameo is at the beginning of episode two.
Unfortunately then there came two more episodes. The second is still acceptable and continues the war between the "Demon Beasts" and the "Draculons". It does so by introducing the demon lord's daughter and with her comes plenty of femdom style kink. The third episode wasn't published in the West anymore and only recently dug out by one of the large pirate portals for hentai. Not only that suddenly the story takes itself seriously and becomes a pretentious and lesser version of the Overfiend finale. The animation budget basically ceased to exist. So while the story would require end of the world destruction and fighting action, we get re-used animation, mouth flaps and kindergarten quality drawings.
So this is a hard to rate show. Episode three clearly calls for a 1/10, whereas episode one comes quite close to a 7/10 (if one shares my taste for demon kink). This somehow then middles out and rounds down to an overall 3-4/10. Pro tip: watch episode 1, smile, and move on. (3.5/10)