In the Seraphic Gate, there is an optional boss fight with Spoiler:Brahms featuring a fourth-wall breaking message from an unknown developer on the game before the fight when talking to him:

"...While this game was being developed, I gleefully told another person on the team that once this game was finished, I was going to join another company that had made me an offer. I could tell my words stung him deeply in his heart.

The reason I am here today is to show my gratitude and regret to that good man.

Forget everything. Try and fight me! Yessss!!"
Contributed by MehDeletingLater
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