Borealis is a new take on the classic twin-stick shooter. The player cannot shoot enemies directly, so the only way to survive is to guide the missiles into each-other, and learn the dozens of patterns they can follow. The less the player moves, the more the score increases, so subtly guiding the world around you is the key.
The game is composed of eleven environments, each of which has a unique style and set of missiles, as well as its own sound profile. These environments range from a battle over a pristine countryside to the floor of a sterile lab. All of this is done to a procedurally-generated soundtrack that is directly based on events from the game.