Things Only Adults Notice In Home
Okay, a human had to escape so she could team up with an alien — or else there wouldn't be a movie. The audience gets that. But as an adult, it's hard not to see the inconsistencies as one human child and a cat escape a Boov invasion easily, one powered by otherworldly technology that seems to have no issues capturing all the world's elite military members, highly-trained martial artists and presumably, even Chuck Norris.
These aliens are advanced beyond human comprehension — yet Tip, who's a child, and her cat, who's ... well, a cat, elude the invasion. The child apparently escapes because her cat was on her head when the aliens were detecting what was and wasn't human. So the aliens detected the cat as not human, yet didn't detect the child. They released the cat and Tip.
This is pretty absurd, considering the aliens can get rid of gravity with the push of a button, but they make this simple mistake. It seems crazy that every other person on the planet couldn't evade the alien invasion, but these folks could — then again, the same was true of The Mitchells vs. The Machines.