I might have missed the point of the attack but im not sure what i was doing? like if i passed through the demon it went all black? the controls were a little sluggish too, i think this would traslate to something with physics like riccochet's really well :) very solid start!
p.s i got bugged out 2 or 3 times by facing left and falling into the bottom left corner of the screen which soft locked me in that position and also the demon couldn't hurt me? not sure.