A head is the cephalic part of an animal, which usually comprises the eyes, ears, nose and mouth, each of which aid in various sensory functions, such as sight, hearing, smell, and taste. Some very simple animals may not have a head, but many bilaterally symmetric forms do. Heads develop in animals by an evolutionary trend known as cephalization. In bilaterally symmetrical animals, nerve tissues concentrate at the anterior region, forming structures responsible for information processing. Through biological evolution, sense organs and feeding structures also concentrate into the interior region; these collectively form the hed.

Ishido: The Way of Stones is a puzzle video game released in 1990 by Accolade and developed by Publishing International. It was designed by Michael Feinberg and programmed by Ian Gilman and Michael Sandige. Producer was Brad Fregger, and Brodie Lockard (the designer of the Shanghai computer game) contributed with graphics.

James Pond 2: Codename RoboCod, also known as Super James Pond, is a platform video game and sequel to James Pond. The game was developed by the same British video game developers as the original game. The title music by Richard Joseph is an upbeat rendition of the RoboCop film theme. James Pond 2 was originally released on the Amiga, Atari ST and Mega Drive in 1991 by three different publishers. The game also appeared on Amiga CD32, Atari ST, Game Gear, Commodore 64, Master System, PC and SNES. The SNES version was called Super James Pond in North America, whereas in other regions it was named Super James Pond II. More recently the game was released as a budget title for the PlayStation, Game Boy Advance, and Nintendo DS, and as a download on the PlayStation 3.