Schmup.exe?

[NeroAngelos]

I'll spoiler as much as I can. It concerns the interior of the research lab so, really, don't read ahead if you're not that far.

Spoiler below!

In the research lab, after killing the female doctor (her name escapes me) the computer with the antidote has a file titled Schmup.exe and is protected by a password. Is this some sort of easter egg or did I miss something in-game?

Spoiler below!

I completed it without opening it so I'm guessing easter egg