Outland

An action platformer with a combat/interactivity system based on polarity. Outland is about a hero who can switch between light and dark forms, an ability he must use to destroy monsters and dodge attacks. He suffers damage from bullets with opposite polarity, but is impervious to bullets with the same polarity. Also, he can only control objects that match his polarity. By switching between forms, he can solve platform puzzles and destroy enemies in this mysterious new land.