Polarity

Polarity is a co-operative shoot'em up in which we take control of two spaceships that advance vertically scrolling through a galaxy full of enemies. The name of the game comes from the fact that both ships have polarity, positive or negative. Depending on the polarity, our ship will be immune to certain attacks and will cause damage to some enemies or others, so changing polarity is essential to advance through the multiple dangers, shots and enemies that populate the screen.