Space Gunman

Space Gunman (スペースガンマン) is a shooter arcade game developed by Tori Corporation and released in 1977. It is Tori's first arcade game and runs on System I hardware. The player controls a bounty hunter and must kill off all of the alien invaders before moving on to the next stage. A sequel, aptly titled Space Gunman 2, was released in 1999; and ironically, was Tori's last game before the company dissolved in April 2000. The original title was ported to the Nintendo Switch, PlayStation 4, Xbox One and PC as part of the Forcefield Archives compilation, as Forcefield Entertainment owns the company's assets since 2001.

Blurb
ビデオゲームの究極の宇宙戦闘. モンスターの戦闘機を制御し、画面上のエイリアンをすべて爆発させます. 切替え可能なアーケード設定を完了して、宇宙銃士は完全なキャッシュボックスを保証します.

Look in the comments for an English translation.