Super Smash Bros./Donkey Kong

Tactics
Since Donkey Kong can move while carrying opponents, a good tactic is to carry them off the edge and throw them at the last minute. Donkey Kong loses 1 point for suicide, but then regains it when the opponent dies, who loses a point too upon death but does not regain it. So, Donkey Kong nets 0 points, but his opponent nets -1.