Okay, my ignorance of mecha anime leaves me woefully underprepared to properly tag this image. I'm not entirely sure what was I was looking at here, but I knew it was badass and that I had to upload it. Would really appreciate some tagging assistance.

The artist's tags don't help much.

Pipe phallus? Now that's a first...

it just me or what
somehow i see soulgain in this mech
but still nice mech

Jekyll-mode?
Do want Mr.Hyde-mode.