So this case did the classic thing where the player is canonically a separate entity from the protagonist, and while I'm not sure I liked having a character called "the player" say things I didn't say myself, I did like the execution on how it was revealed. Put simply, to get the true ending, you choose dialogue options that are out of character for Ann to say, which sort of creates a dissonance within her that manifests as a sickness of some sort. As if she knows something is wrong, but can't do anything about it. This, as well as Chad's reaction to Ann acting strange, does an excellent job portraying the characters as people in their own right, with agency, even if we know that technically isn't the case. And, to the audience, these ARE supposed to be people. Which is something a lot of other fourth-wall-breaking stories forget.
I was a bit worried when the character of the entity showed up, thinking they would be an edgy and/or cheesy villain, but it seems I didn't have to be. They just wanted to make an interesting story, yet failed to take into account how staunchly against Rooke's character it is to murder his wife. Surprisingly grounded for a literal omnipotent author self-insert. Obviously, when you think about it too hard, the story itself rebelling against the creator doesn't exactly make sense, nor do the entity's and the player's strangely equal power levels, but that's not really the point. This is a story about the dichotomies between player and protagonist, and between a creator's view of their story versus their audience's. And for what it is, it works, and it works well. Good luck in the competition!