shoot 'em up

Noun

 * 1)  A piece of media which depicts considerable gunplay.
 * My wife won't watch this movie; it's a shoot ’em up.
 * 1) * 1989, Duncan Macdonald, R-Type (video game review) in Your Sinclair issue 37, January 1989
 * An unmissable shoot 'em up.
 * An unmissable shoot 'em up.