Absolute Anime

Hey guys, I need help with identifying the anime movie.

It started with the intro of girls in embriotic poses in some unknows space. The main character was either pirate or bounty hunter (not sure), who had a gun imbued into hand. His protagonist was an immortal non-human person who used his own ribs as swords. The movie was quite old, but graphics were quite fine I think.

I can only think of one anime with a guy that has gun on his arm where a hand should be.

Cobra
Space Adventure Cobra to be exact.
He's a famous pirate with a psycho-gun on his left arm. His antagonist is an android or cyborg named the Crystal Boy for reasons that he looks like he's made of glass or crystal.

That's my guess.

OMG I love you!
Big thanks to you, that's exactly what I was looking for. I've seen that movie 10-11 years ago, so sorry that I got some facts wrong