Pitfall

The Pitfall is an item confirmed to appear in Brawl. It hails from the Animal Crossing series. When set on the ground, the next person to walk over it is sucked down. This also happens when the item is thrown at an enemy. If used on a floating platform, the character will fall through it, but if used on the ground, the character will just be stuck temporarily as if hit by Donkey Kong's Headbutt.If you throw it at an enemy while he's in the air he will go straight to the ground.This item compliments Olimar extremely well because his pikmin can use maximum damage.

In the Animal Crossing series, somewhat rare item that, when buried, would cause any character who walked over it to fall down into a small pit. This item was one of rarer items in the series and was most commonly found randomly buried. In Animal Crossing: Wild World, it was named Pitfall Seed.