Regress to the 1980s with this light-hearted "retro" arcade game.
Your planet is rich in naturally occurring freshly-ground coffee lakes. Unfortunately aliens are intent on ruining this valuable resources by dropping sugar cubes into it.
It is your mission to defend one of these lakes by moving the gun turrets up and down and firing missiles at the cubes, without hitting your own turrets.
If you fail in this mission and the contamination reaches 100% then your entire planet will die of snobbery.