Acheron's Plight is a move used by Heihachi Mishima in Tekken 5: Dark Resurrection. In later games, it was replaced by Fire Starter.
If Heihachi hits a standing opponent from the front, the attack will turn into a throw, whereupon he has the option to input 2 to perform Iron Hand, and, if the opponent's back is at the wall, the move will cause a wallsplat that does additional damage. If Heihachi does not input the punch, the opponent will still suffer damage from the fall.