Genre: Fixed-screen shoot 'em up - MobyGames
https://www.mobygames.com/game-group/genre-fixed-screen-shoot-em-up/offset,275/so,0a/
Group Description The initial form of shoot 'em ups was defined by the genre's progenitor, Space Invaders (1978): the player controls a character (usually a space ship) that can move within the limits of a single top-down screen. Traditionally, the movement is restricted to the sides only; shooters in which the character can be navigated up- and downwards within one screen also belong to this ...