Though Goku gave up being a cop to become a detective, his sense of loyalty never faded. Thus, when someone starts killing his former colleagues, he has to get involved. The job might be more than he can handle, however, as he's up against not only a half woman/half motorcycle cyborg, but also the creator of the strange eyes that have been driving his friends to destruction! Death seems likely, but the tables may turn once a mysterious benefactor implants a computer in his left eye -- a computer that can obtain any information, control any device, even destroy the world!
Cobra is a futuristic ladies man with a gun for an arm and selective memories of his past. His inherited weapon, the Psychogun, is an unusual tool which responds to his very thoughts. Due to his strength and choice of weaponry, Cobra lives his life as a pirate whose main goal is to elude the nefarious bunch of evildoers known only as the Guild. Follow his space adventures as he lives on the run from both sides of the law!
I may be recommending these because they are both by Buichi Terasawa. But this guy know how to write a story and definitely knows how to illustrate. both anime are very reminiscent of each other.
The style and feel of both series are very similar and it is the surrounding characers, and mostly the women, that are so alike as to be interchangable between the two anime.
Also, if cool guys with cybernetic enhancements that makes them unique is your thing then Goku: Midnight Eye and Space Adventue Cobra should be just what you're looking for.