Rocket Jockey, is one of many, many space shooter-likes for the unlicensed multicart Action 52. It is a side-scrolling shoot em' up similar to Gradius where you control a gunslinger on an ICBM and dodge and shoot down everything in your path.
LoganTheTASer in this run beats the game in record time by ending input early during the second level, as most of the enemies can be avoided by staying at the bottom right of the screen.