Nudity is very frequent throughout the series.

Most if not all female characters in the show are, literally, seen topless or completely naked at least once.

An upper class student attacks Satellizer, then gropes her naked breasts as a form of torture (Satellizer hates being touched).

Violence is very bloody and occasionally graphic.

Pandoras can regenerate limbs, and a few fight scenes involve some fairly graphic dismemberment.

Fights against NOVAs never end well, with a lot of characters shown with missing limbs, or with severed body parts lying on the ground.

PG-13 - level swearing; no uses of f*ck, but some occasional uses of sh*t, h*ll, d*mn, *ss, etc.

None

Fighting in the show can get pretty bloody and intense.