A gorgeous 2D-platformer with Metroidvania and bullet hell elements. While many powers you gain over the course of the game are related to combat or traversal, you also get the ability to switch between blue and red. The environment has platforms, hazards, and enemies of both colors. You have to be the right color to ride a platform, avoid damage from a hazard, or deal damage to an enemy - which can mean rapid Ikaruga-like switching as the bullet hell ramps up.