You should have the Mirror Shield right? No? Well go to the realm of Illusions and get it.
Go back to the realm of Truth, and the Shield will turn into the tape recorder.
Now when you encounter the emiters, use the tape recorder to record their supersonic screach,
then aim it back at them. They'll run away, and the next pixel is all yours.
Right now I'm haveing trouble with the boss Hate and Love. I have no trouble during his love form,
but his hate forms' "Hellish Swing" really gives me trouble.