It's the Taito hit classic: Space Invaders! Shooting down them aliens never felt so good, even in microgame form. Move the ship and fire and hope you get one of these aliens flying by. Space Invaders (1978)
I used some sprites and sound effects from @RokCoder's Space Invaders project, check it out here: https://scratch.mit.edu/projects/253610111/ @thinkingwithshifting gets credit too with his microgame engine, a must-have for microgame creators and fans of Warioware D.I.Y
