Whenever a game is denied sale in Australia due to lacking a rating (due to it being "too much for MA" and the people in charge of giving higher ratings to videogames being more than a little clueless), this will inevitably occur. The most famous is Fallout 3, where morphine became "Med-X", as the Australian censors really felt the need to protect Australian kids from getting jacked on hospital grade narcotic that is nowhere near as readily available as its illegal counterparts. For essentially the same reason, this also happened to the other versions of the game (so as to keep the rating from being AO or its foreign counterparts). Team Fortress 2's Soldier lampshades this through some of his Domination lines for the (Australian) Sniper:
Soldier: Aww, am I too VIOLENT for ya, cupcake?!
Soldier: Your country did not prepare you for the level of violence you will meet on my battlefield!