I agree, it did start out kinda cool, but ended up kinda, "Eh."
I especially liked the scene when the kids are walking down the street and a bunch of Goobacks roll up in an anti-gravity low-rider listening to alien electro music and start bouncing up and down like they were gangstas.
And the scenes in the gooback ghetto were funny.
The man-pile was kinda gross.
Non
DEY DERT DER DERB!