Environmental message at varying decibels, starting with the fact that the polar ice caps have melted (although "global warming" is never explicitly mentioned). The savage-thug villains, working out of a notorious real-life oil tanker, identify themselves with industrialization, "development" and, presumably, capitalism.
Positive Role Models & Representations
Explosions, gunfire (with human casualties at close range), people and craft impaled by spear guns. Hand-to-hand combat and knifings. The evil Deacon loses his eye, and we see the bloody socket from time to time. A threat of execution by drowning in disgusting sludge.
Rear-end nudity only as Helen strips naked to trade sex with the Mariner in return for safety on his craft, and she wears fairly skimpy clothing throughout. Later another seagoing drifter expects to have sex with Helen in a swap, but the hero interrupts the near-rape. Later Mariner and Helen make non-explicit, more consensual love.
The F-word uttered once by a bad guy; several s-words, as well as "hell," "damn," "ass."
Ease of Play
The villainous "smokers" live up to their names, chain-smoking cigarettes.