Fun fact: In the Resized maps from Garry's Mod (addon made by Mr. Lazy), in the giant room that the Nihilanth teleports you to, there is an organic light that trusts the scientist (image 1) but hides when I get close (image 2). The light's not in actual Half-Life, so it's not official, but I still found it notable enough to make a post about it
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oh cool is that in hl1 too? i said that it was only in the resized maps because i checked with mmod, since that has a chapter select