Bygone is a platform arcade game, which was released by Taito Corporation in 1985; it utilizes two Zilog Z80 microprocessors (running at 6 MHz) and a Motorola M68705 (running at 2 MHz), with two Yamaha YM-2203s for sound. The player must use an 8-way joystick to take control of a spring-like robot (which is the eponymous "Bygone") which must make its way through an underground cavern while watching out for or destroying enemy robots - and it must also collect special parts in order to transform itself, with the option of returning it to its original form and trying different transformations. At the end of each stage, you will come to a large stone statue of a Cyclops, whose only vulnerable point is its eye; once you've fired enough shots at it to destroy it, you will proceed to the next stage.
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Screenshot of the game.
