Great work on making the environments and all the characters, I really like the aesthetic and animations. The controls were a bit unintuitive though, and I wasn't sure exactly what to do at the start.
Maybe your alien and the other alien at the start can have a short dialog where they about what they're going to do. That way the player can have their objective in a natural and intuitive way. Also when you're over a pickup, it would be nice to have an on-screen prompt for the pickup button.
Great job on the human AI too by the way, they work really well. I was able to sneak around and it never felt unfair.
Also, I don't think you're supposed to upload after the deadline, even for bug fixes. It's not in the spirit of the jam :(