Disturbing demon dream

This dream is fading fast, so here's what I know:

I was heading to Europa, which is one of Jupiter's moons. There is a colony of people living there already, and it looks just like rural Mexico (in real life it is icy).

I go to see a doctor (for some reason) and he wants to do all these tests on me. His office looks like something maybe an Aztec peasant would live in, though the doctor and his equipment are modern. I'm dreading undergoing these tests, and as we're about start, a couple people walk into the office. It's a father with his young daughter. They've brought a fast food meal for the doctor, and they place it on the table and sit down with me. Now I feel really awkward because it seems that they're going to stay and watch as the doctor performs his tests.

So I get up to leave, and soon I'm flying around Europa, about to head back to REAL Mexico, on Earth.This is where things get weird.

I'm in a cave or underground cavern, and there's a demon there. I have to fight it. The demon is so bizarre. It's humanoid, but with smooth skin of a greenish-purplish hue, with a bronze dusting*. Its overall appearance is that of a baby, but its head is disproportionately small, and its limbs are as big as an adult's. It has no facial features except for little pseudo-eyes, which are squeezed shut. Seems to have been inspired by Pan's Labyrinth, photos of lampreys I saw in a National Geographic, and this episode of Buffy the Vampire Slayer I saw a part of..

So I'm "fighting" this demon, but actually I'm just cradling it in my arms as it lays limp. It does not appear threatening, but I KNOW that I have to act fast or ...something... will happen. I'm not scared, just in a rush. April comes in to help, and I tell her to go look for some bombs. Meanwhile, I grab our new Ginsu knife and cut its head off. It takes next to no effort, and there is no blood. Instead of bones it has hollow cardboard tubes inside it. I proceed to cut off the rest of its limbs, but the act of doing so is so disturbing that I vomit a brick of sand (???).

That's when I woke up, thoroughly disturbed.

*I realize now that the skin may have been inspired by a Chinese eggplant April and I put on a pizza. I was basically fighting an eggplant.