Gyruss (Arcade)

Gyruss
Developer: Konami Publishers: Konami (JP/EU), Centuri (US) Platform: Arcade (custom) Released in JP: March 1983 Released in US: April 1983 Released in EU: 1983 This game has hidden developer credits. This game has unused graphics. This game has regional differences.

Gyruss beats Roc 'N Rope by having not one, but two members who left / were fired from Konami and eventually worked at Capcom. Oh well, I'm sure they didn't work on anything that successful after this game.

Anyway, Gyruss is an omnidirectional tube shooter wherein the player travels from Neptune to Earth. As in most shooters, things will shoot and be shot at.

Developer Credits

A set of developer credits are hidden in the ROM, beginning at 0x1E9A in gyrussk.1:

 PROGRAMED BY TOSHIO ARIMA
 CREATIVE BY YOSHIKI OKAMOTO
 CHARACTER BY HIDEKI OOYAMI
 SOUND BY MASAHIRO INOUE
 WE ARE MAKED TIME PILOT

(Source: Original TCRF research)

Unused Graphics

	A sphere with circling arcs of light. Is it an enemy? A power-up? A planet? Nobody knows.
	While the point bonus of 200 is never displayed, it is the score value associated with the satellites. The 500 just beside it in the image is used when shooting the Orange-version of the unused sprite above. The bigger bonuses start at 1,000.

(Source: Original TCRF research)

Regional Differences

Centuri licensed Gyruss in the U.S., while Konami distributed the game elsewhere.

High Score List

Konami	Centuri

Centuri changed the top four names on the default high score list to their own. Makes sense, right?

Extra Life Settings

For whatever reason, Centuri saw fit to adjust the bonus life settings to make the game more difficult.

	Konami	Centuri
Easy	30,000; 90,000; every 60,000 after	50,000; 120,000; every 70,000 after
Hard	40,000; 110,000; every 70,000 after	60,000; 140,000; every 80,000 after

(Source: Original TCRF research)