Dynamite Headdy (ダイナマイト・ヘッディー Dainamaito Heddī?) is a platformer video game developed by Treasure. It was released in 1994 by Sega for the Sega Mega Drive/Genesis, Sega Game Gear and Sega Master System.
Headdy, the central protagonist of the game, arrives in North Town to find that the evil puppet King Dark Demon is in the midst of attacking the puppet town to select which of the peaceful toys should live and which should be converted into his evil minions. Headdy is captured and rejected by D.D.'s forces, and is dropped into the dust cargo to be thrown into the incinerator. However, Headdy escapes the clutches of Dark Demon's minions and sets off to defeat the evil king.
However, trouble is afoot. Not only is the puppet world filled with Dark Demon's minions, but to reach the evil overlord's castle Headdy must defeat Dark Demon's Keymasters, who serve as the king's elite guard. To make matters worse, Headdy is followed by Trouble Bruin (Maruyama), a puppet jealous of Headdy's success. Trouble Bruin wants to be the star instead of Headdy, and will stop at nothing to get rid of him.
Players control Headdy, a puppet with a detachable head. This head can be fired in eight directions to attack enemies and obstacles, as well as retrieve out of reach items. By grabbing a HangMan, Headdy is able to pull himself up various platforms, or drag certain areas towards him. By finding a walking case named HeadCase, Headdy can gain a special head type depending on the image shown on HeadCase at the time he hits it. These range from offensive heads that increase his strength, allows him to shoot homing stars or suck up everything on screen, to support heads which include invulnerability, shrinking to reach small areas and sleeping to regain health. Most of these heads have a time limit before the head returns to normal, with the player able to cancel at anytime, though some heads, such as the Pin Head, disable manual cancellation. The game also features a side-scrolling shooter stage, during which Headdy can change between three unique Head Types.
The game plays over a series of scenes, each made up of several acts, typically culminating in a battle against a Keymaster boss. Collecting enough pieces which come out of defeated Keymasters earns the player a continue. During each scene, there are several 'secret bonus points' that can be earned by completing certain tasks, such as destroying certain enemies or objects. By finding the Liberty Head, players can enter a Bonus Stage in which the player must shoot basketballs into the correct hoops. Clearing these stages reveal part of a code which, at the end of the game, can be entered to access a bonus extra stage.