Im talking about stuff like that solo in surfing with the alien or circles by the satch. I know that the sounds come mostly from tapping techniques but what effects does he use to get those crazy tones? i have created some tapping sequences of my own for my own stuff but i just dont sound right even when im hitting the right notes at the right times.

Is there a combination of effects that makes a guitar sound like a funky robot instead of a guitar?
tapping the string with the side of the pick. u do it really quickly, it comes out a lot faster than using ur finger to tap it.
so its just a matter of technique? they dont use a chorus or flanger effect or whatever?