Make Wizpig Disappear
Try this. Play SRC with Illusionist, Witch, and any third bird of your choice. On the final wave, keep Witch buffed by Illusionist. Every with attack and her mirror shrinks Wizpig until he finally disappears completely. His health meter is still there, but his icon is gone. Another attack makes his charge meter disappear, and at that point, no more attacks are possible. I buffed the third bird and survived his attack, and he re-appeared as a teeny, tiny Wizpig and I finished him off.
Nothing earth shattering about this, just something kinda cool.