The Blacklight Secrets

The Blacklight is one of the tools that can be unlocked by flicking the switch to right after typing in the code for the roman numerals. Some clues and references to other endings can be found using the Blacklight. This was requested by people from the comment section for the Blacklight, so here it is.

Ending #5 / Illuminati Ending :

Using the Blacklight, you can find the words "Is any of this real?" written on the monitor. This may be a reference to how the Illuminati not being real or the poster you get for this ending say "Real?".