Topic summary
Multidirectional shooter
Extracted from the Wikipedia article Shoot 'em up.
Types
Multidirectional shooters allow 360-degree movement where the protagonist may rotate and move in any direction such as Asteroids (1979) and Mad Planets (1983). Multidirectional shooters with one joystick for movement and one joystick for firing in any direction independent of movement are called twin-stick shooters. One of the first games to popularize twin-stick controls was Robotron: 2084 (1982).