Beakons are large, flightless birds whose bodies are simply made up of a large head and a long pair of legs. They have the heads of birds of prey, with mostly brown feathers and black around their eyes and large, sharp beaks. The beakons often have the ability to attack twice per turn, in some games having the ability to perform loud squawks that intimidate their opponents or can call for more of their kind.
Beakon appeared from the beginning of the game. When they become enraged, they are able to perform a Jump Strike and will flee when threatened. Starting with Version 5.0, vicious beakons can be encountered in the Netherworld, as well. They can still perform a jumping attack and no longer flee.
All three beakons bear a resemblance to the Phorusrhacidae family of flightless birds. More commonly known as terror birds, these walking hatchets possessed enormous beaks and existed as apex predators in the plains of South America roughly 2 million years ago in the Cenozoic era.
The beakon's English name is a play on "beak" and "beacon". Its Japanese name, ōkuchibashi, literally means "large beak" or "giant beak".