erinja:If a game like Doom would cause confusion due to body parts hanging around, then I suppose English is totally insufficient...

Recap: We were looking for a situation where Je would need to be used. When playing a game like Doom, you should use the Je preposition.

Although it isn't relavant to the main point, in English we can say:
1 - I seized his neck.
2 - I seized him by the neck.
This is important to distinguish when playing Doom.