If you run this on your PC/Mac browser it will work fine. As you can see when you move towards the monster, he "sucks" the colours from the world. Obviously this is just a shader, but as we know you need WebGL to run the shaders.
My problem is that as well as releasing the game for PC/Mac I am also releasing for the iPad and iPads cannot run WebGL. So is there anyway I can have this effect in the game that doesn't include WebGL, maybe using the events? Any ideas.