Sky Alert

Sky Alert is a two-player vertical scrolling shooter released by Metro in 1992. Players pilot spacecraft through increasingly challenging levels filled with enemy formations and obstacles. Utilizing an eight-way joystick and two buttons for firing, the gameplay involves maneuvering to avoid attacks while targeting approaching adversaries. The game’s soundtrack combines audio from the uPD7810 chip alongside sounds produced by the OKI6295 and YM2413 sound chips. Originally released in Japan, Sky Alert represents Metro's second published arcade title. Its technical specifications include a Motorola 68000 main processor running at 12 MHz, paired with a uPD7810 for sound generation. The game’s design emphasizes cooperative gameplay as two players work together to progress through the levels and overcome the escalating challenges presented by the enemy forces. Sky Alert provides a straightforward but engaging shooter experience, requiring skill in both piloting and targeting.