Hobo 5 Space Brawl

You control a single character, moving left and right across a single screen to confront waves of alien enemies. The main goal is to survive each stage by clearing out all the opponents. You have a basic set of moves: punching, kicking, and a more unusual attack. You can also pick up objects scattered around the stage to use as weapons. The pacing is fast, and the difficulty comes from the sheer number of enemies that crowd the screen. It feels like a messy, frantic scramble where you're just trying to hit anything that moves before it hits you.