Pit

An Abyss is or Bottomless Pit is present in most Mario games and Donkey Kong games. Normally when a character falls in they lose a life.

Donkey Kong was the first Nintendo game to feature them. Many arcade fans reacted in annoyance though the game did very well and was a hit. Sometimes abyyses were different like in Wario World where you fell in a land where creatures would attempt to steal coins. In Paper Mario: The Thousand Year Door you would get thrown out and recieve one point of damage.