> For video games it's of course even more complicated, they have an age rating given out by an industry board (just like movies in the US) and their views on what's acceptable shift drastically over time.
They also did a lot of weird stuff like replace red blood in games with green blood making the enemies "zombies" and thus making the game less violent somehow.
I would recommend against drawing any conclusion of reason from the decisions of this particular board.
They replaced the blood in Team Fortress 2 with nuts and bolts, making the characters robots.
Many countries regulate depictions of human vs. nonhuman characters differently -- even the USA. The USA taxed imported toys differently depending on whether the character depicted by the toy was human, prompting Marvel to argue in a court of law that the mutants from X-Men were not human in order to score a tax break on X-Men toys manufactured overseas. Which is just the opposite of X-Men's major themes.
They also did a lot of weird stuff like replace red blood in games with green blood making the enemies "zombies" and thus making the game less violent somehow.
I would recommend against drawing any conclusion of reason from the decisions of this particular board.