- Mike Tanaka's corpse can be found in a workroom near the primary airlock that requires the ion torch to access. As well as many of his sketches, the room also contains a locker that requires a code to open. This code cannot be found anywhere in the game; instead, it was listed on Tanaka's Twitter page. The code is 2931.
- Before encountering Axel in the Spaceflight Terminal, the sound of a meowing cat can be heard albeit very faintly. This may be a possible homage to the original Alien film in the form of the Nostromo's cat Jones.
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