Game eh?
Well, since tabletop Wh40k counts as a game, I'm proud to say it's the Ork gun that shoots Gretchin (their smaller, cowardly cousins) through warp at their target, where they rematerialize (usually inside their armour) and blow up their kamikaze-charge.
In other words, it's a gun that shoots a live underling, armed with a bomb-vest, through a demon infested realm often mistaken for hell,for them to blow themselves up inside the enemy protections.
In real life, a rope dart, or Jouhyou, from traditional Chinese martial arts.