Zaxxon is a scrolling shooter developed and released by Sega as an arcade video game in 1982. The player pilots a ship through heavily defended space fortresses. Japanese electronics company Ikegami Tsushinki was also involved in the game's development.

Shoot 'em ups are a sub-genre of action games. There is no consensus as to which design elements compose a shoot 'em up; some restrict the definition to games featuring spacecraft and certain types of character movement, while others allow a broader definition including characters on foot and a variety of perspectives.