Some mild sex references. In the last volume (Rated 15 in the UK), the episode "Going Too Far" contains strong sex references and nudity.

A character's breast size is once mentioned.

Some throughout, but not much blood shown.

In "Going Too Far", MASSIVE amounts of blood are shown. This is all done in an over the top way. In the same episode, Earth is flooded with Hyatt's blood.

Mild language: Damn, ass, hell

Moderate language: Bitch, bastard

Strong language (in "Going Too Far"): Fuck (once)

More uses of the f-word in the English dub, though infrequent (once an episode, if used).

Little profanity in the original Japanese version.