R-Type

"R-Type (アールタイプ) is a side scrolling shoot-em-up arcade game produced by Irem in 1987. The player controls a space fighter named "Arrowhead" to defend humanity against a mysterious but powerful alien life-form known as "Bydo", which was later discovered to be not entirely alien in origin. R-Type is recognized as one of the classics of the shooter genre from the 1980s arcade." Source: Wikipedia, "R-type," available under the CC-BY-SA License.