[Mac][late eighties-early nineties?] Game where you shot incoming planes and paratroopers

Platform(s): It was an old Mac that looked more or less like this

Estimated year of release: late eighties-early nineties?

Graphics/art style: Was a long time ago, but... the falling paratroopers seemed to be stick figures I think?

Notable gameplay mechanics: You controlled a gun turret in the left corner of the screen. The objective was to shoot planes and falling paratroopers before they reached your gun and killed you, ending the game.

Other details: I played this game with my dad when I was pretty young. I have no idea what it's called, who published it, etc.