Gyruss

Gyruss
Developer:	Konami
Publisher:	Centuri
Game designer:	Yoshiki Okamoto
Release date:	1983
Genre:	Retro/Fixed Shooter
Game modes:	Up to 2 players, alternating turns
Cabinet:	Standard
Controls:	Joystick, 1 button
Monitor
Orientation:	Vertical
Type:	Raster, standard resolution (Used: 224 x 256)
Size:	19 inch
Notes
One of the first non-vector games with (pseudo-) 3D graphics

Gyruss is a shoot-em-up video arcade game released by Konami in 1983. The game was licensed to Centuri in the United States. It follows in the tradition of space war games such as Space Invaders and Galaga.

The game's background music consists of portions of J. S. Bach's Toccata and Fugue in D Minor, in a modern rock style. Gyruss has the distinction of being the first arcade game to use stereo sound.

Gameplay

The gameplay is very similar to that of Galaga but with an added twist: the game is presented in a forced 3D perspective, with the player's ship facing 'into' the screen and able to move around the perimeter of an implicit circle—essentially, Galaga mapped onto a cylinder. The familiar scrolling starfield of earlier space shooter games was arranged to fit the 3D perspective, with the stars coming into view at the centre of the screen and flying outward, giving the impression of the player's ship moving very fast through space.

The majority of enemies are other spaceships, all of which must be destroyed before a level is completed. They appear either from the centre of the screen or from one of the edges, and move in swirling patterns. They can shoot the player's ship or destroy it by contact. They hover near the centre of the screen after completing their deployment pattern, and occasionally fly outwards and shoot at the player. If they are not destroyed by the player, the enemy ships gradually fly away one by one.

There are also several other types of enemies: satellites, asteroids and laser beam generators. These appear intermittently and soon disappear of their own accord if not destroyed by the player.

Satellites materialise in a group of three just in front of the player after the ordinary enemy ships have finished deployment. They gyrate in small circles and shoot at the player. The player's ship gets a better weapon if the player can destroy the middle satellite. This is not always easy, as the satellites' shots do not need to travel far to hit the player's ship, and the player only has a few seconds to destroy them before they fly away.

Asteroids fly straight outwards from the centre of the screen at regular intervals. They always fly just to the left or right of the player's ship, so unless the ship moves it will be never be hit by an asteroid. They cannot be destroyed but a small points bonus is given for shooting at them.

Laser beam generators occasionally fly straight outwards from the centre of the screen. They consist of two generator segments with a laser beam between them; destroying either generator deactivates the beam. The player's ship is destroyed by contact with either the generators or the beam.

The player begins the game "two warps from Neptune". After completing each level, the player is one warp closer to a planet. Each time a planet is reached, the player's ship is seen flying towards it and then a short bonus round is played, where the player can shoot enemy ships for bonus points without worrying about being destroyed by them. After reaching Neptune, the player is then three warps from Uranus, and progresses through the Solar system to Earth, taking three warps to reach each planet. After completing Earth's bonus stage, the player must travel through the very fast "three warps to Neptune" level before returning to the start of the game. Thus, the game runs in a circle, just like the player's ship.

Gyruss was quite popular in arcades and was ported to many home computer systems.

External link

• The KLOV entry on Gyruss (http://www.klov.com/game_detail.php?letter=G&game_id=8060)
• MobyGames entry on Gyruss (http://www.mobygames.com/game/sheet/gameId,7720/)