Now for something awesome.

In the Tensho era Japan, evil rises as the Black Night Demon returns to lay waste to the land, only the half crow demon Kabuto and a band of warrior gods, the human forms of Genbu, Byakko, Seiryu and Suzaku along with a talking sword can rid the land of evil.
This is so 80s, they had to release it in the 90s; it's art style, rock anthems, dark gritty colour palette and nonchalant attitude to violence is all 80s in aesthetic almost reminding me of a Japanese GI Joe of how casual everything seems in regards to action.
It was apparently licensed for western release but good luck finding a copy let alone any sign of an English language release
Final Verdict: There's not much to say, it promised 80s style action and that's exactly what you get, no complexity just a good old fashioned ninja anime where it's just beat the bad guys, what more do you want?