Invaders from ocean
Pixel art about Space Invaders. I watched screenshot from videogame for MS DOS - Space Commanders.
Everybody already have a habbit that Space Invaders are from space. And now from ocean. Most of planet is small explored ocean. And who know what is in there, in depth. So, from there are going crabs and sea bugs. They are huge. They can shoot with plasma clot. And you are on a ship with a big gun. And mainly it is all like you know. But there is some game moment - That all these bugs can fight in melee and can bite or smash with claws. And you will not be destroyed immediately, as they reach you. You can continue give a force feedback. You have lots of life. And enemies are pretty resilient. And all this is going on water.