Spiral Knuckles in Tears
As the Dangaioh Team continues their training, they encounter a trio of assassins sent by the Bunker to eliminate them.
Aired 25/10/1988EP 2 - Spiral Knuckles in Tears

1987
Hyper Combat Unit Dangaioh
When four psychic warriors discover that evil invaders have destroyed their planets, they are brought together by a mysterious doctor to unite to form Dangaioh, the most powerful weapon in the universe. Using their full collective cyonic powers, they alone can stop the bloody tyranny of Captain Garimoth and his wicked henchman to prevent the end of the universe.
(Source: Manga Entertainment)