He's not saying it's alien, but it was totally aliens.

Mario trying to save Africa from a giant cloud.

A can of Welch's that is bigger than Uranus and possibly Pluto or maybe its Neptune.

A bean flying violently in to the atmosphere.

Nope Four, a masterful piece of artwork consisting of "NOPE" in an array of colours.

A nike shoe made from 100% real sweat shop labour.

A rabid thing eats all the popcorn. Everyone is left to starve.

Superman gets swallowed by a swarm of blue.

A young man stands in his bedroom.

A man holding a purple cloud with a halo.

A line questioning who it owns to, and why it's even there.

Yellow thing with a face on it.