Chimera Amstrad CPC

Investigations have traced the source of erratic radio signals to a giant alien vessel, orbiting the Earth high in the exosphere. That craft is hostile, there is no doubt; somebody will have to go aboard and find out how to elimate the threat. — Cassette cover

Chimera is a 1985 arcade video game developed by video game designer Shahid Ahmad.

Gameplay

A huge spaceship threatens to destroy Earth. One person must board the vessel and activate its self-destruct mechanism to make it explode, saving Earth.

In Chimera, the player moves through an isometric maze of 8 x 8 screens. The player must try to gain access to hidden or blocked areas of the spaceship, often searching for items in order to circumvent various obstacles. Once the obstacles are disabled, the player may use items to create a warhead and carry it to the designated "blue" room of the ship. Upon activation of all four warheads, the player must reach the green room in order to complete the quest.

The player must also attend to his water and food reserves, which run out faster when carrying something or when in a hot room. Both water and food can be found in the maze occasionally. If the reserves run out, or if the player tries to disable an obstacle with an incorrect item, the player dies and has lost the game.

Upon completion of the game, the player receives a key combination granting access to a bonus game in which the player has to shoot at a row of items (similar to Space Invaders). It has been said that the bonus game on the Atari 800 crashed due to a programming error. However, the game's author claimed that the Atari 800 bonus game, A Different Kettle of Fish, was working when the software was shipped to the publisher, Firebird Software.

Source:Wikipedia