After writing all these notes I finally came up with my idea.

It’s going to be a Robotron style top down shooter set in a minimalist world inspired by the art work of Piet Mondrian where each box is a new room.
The twist is that the enemies will be secondary colors and you as the player will have to use your weapon set of primary colors to kill the enemies based upon their complimentary colors. possibly painting the blocks with their color blood as you go along.

Anyways that’s about it for now, good luck everyone and have fun game developing!