One day i searched on Youtube for Herman Li guitar effects and wondered if i could do some of the sounds without a whammy bar. I finally figured out a few of them (and another one not in Herman's video). So, i now tell you how to do these cool effects!
(Note: i will try to get pictures tomorrow.)
Step 1: pacman noise
in the Herman Li video, Herman unscrewed his whammy bar, palm muted all his strings, and lightly dragged the bar over his middle pickup. i dont have a whammy bar or a middle pickup so i found an allen wrench (most metal objects will work; i could do it with the plug from a pair of headphones) and drag it over where your middle pickup is or where it would be. for the ghost sound, lay bar shaped metal object over strings and drag across while wiggling. i couldnt find my allen wrench in the pic so i just picked up my cable.