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Known as Gun Sight, this first-person shooter was released in Japan before the renamed Laser Invasion was released in the US, it released in Japan on March 15th 1991.
A hostile nation is secretly planning to launch a new type of weapon against its enemies. As a member of a special armed force, the player's objective is to prevent the enemy from launching their weapon. The player's initial objective is to rescue a covert agent codenamed Spider, who has been captured in one of the enemy's bases.
The game is composed of four missions with three different playing styles. The first is to come to the enemy area with an upgraded AH-64 Apache. Before each mission begins, the player will receive a mission briefing from their commanding officer, who will explain the player's next mission objective. In all of the game's missions (with the exception of Mission 3, which takes place entirely in the air), the player must land their helicopter into enemy heliports and then infiltrate the enemy bases in order to fulfill a certain objective. After fulfilling their mission, the player must escape from the enemy's base.
The player can adjust the game's sounds, controls, and their number of lives in the option menu before starting the game. The game's gun shooting segments can be played with the Zapper or the LaserScope. When the player loses all of their lives, they will be given five chances to continue where they left off. The player can also gain extra lives by reaching certain scores.