Fire Breathers is a top-down combat shooter from Action 52, the most infamous NES multicart. According to the manual, you and one other player control dragons and are fighting each other in the middle of the Dragon Wars. Whoever kills each other the most in a set of eight rounds will win the wars and bring victory to their kingdom. Note that the game is strictly a two player game; there is no CPU option.
LoganTheTASer saves 26 frames over his previous run by exploiting a screen wrapping bug in the final level.