I really loved this game. I usually don't enjoy visual novels, but the cover art drew me in, the screenshots got me to play, and the story kept me playing. I believe I got all endings (three).
I love the art style and all of the art, which both matched the theme and added to the horror. The environment design made you feel trapped. Mr. Mike Mic went from unsettling to horrifying. Wife had an "almost normal" appearance. Even the hat guys felt off. My favorite part art-wise was when Mr. Mike Mic's shadow shows up on the wall in front of you.
Though the writing needs some proofreading, and the "mysterious person" was a major plot hole, the story was captivating, and the horror was done very well. This game really fits the Dreadful Nightmare theme, and implements both the descent into horror and false hope challenges effectively. You're a great story-teller.
The main character describing how they struggled to move is fairly reminiscent of actual nightmares, creating a trapped-in-a-nightmare feel. The upbeat sound design and setting made the game feel like a game show, and when contrasted against the story, enhanced the horror. So did Mr. Mike Mic occasionally slipping out of his charismatic game show host persona, showing his true nature.
I forgot I was playing a horror game until the key question. That was a great way to start the horror: completely out of nowhere, a bit unsettling, and it being played off as an innocent joke. The escalation of horror was set at a good pace, too, going from normal to unsettling to horrifying.
Usually when choices don't matter, it's detrimental to the game, but it worked here because it was part of the game, and the lack of control created a feeling of helplessness. When you were given choices that mattered, along with hope that you had some control of the outcome, you learn that nothing you did truly mattered, turning that hope into hopelessness. You did everything right, and it still wasn't enough. The slow realization that you're right back where you started only adds to this.
I only found two bugs, one with the options menu and one with one of the trivia questions at the end. When I turned the sound effects down a little, it seemed to have turned them off completely. When asked what the first question was, selecting the correct answer behaved as if I selected the wrong answer.