During Chapter 3 on the third floor of Seiryo High School, you will come across a secondary case. It starts with a teacher called Ebisu-sensei greeting you, then delinquent teenagers kicking him in the back of the head with a soccer ball. Then a red aura descends on the teacher… You learn that there is a reason behind the red aura, anger, and that it must be kept at bay.
As the secondary case progresses, you are tasked with guarding the Ebisu-sensei body from all the trappings of these teenagers. For the first time you have to search for traps. You can only discover the slate eraser wedged at the top of the door leading to the classroom. But alas, this was not the only trap that lay in wait.
Next comes the chair. Interact with the pillow to find a whoopie pillow. But that's not all. Interact with the mat. Yagami will find another whoopie pillow. That's all there is to find for traps with the chair.
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Finally, Ebisu-sensei will have to go to the bathroom urgently. But again, there are pitfalls! First, look at the chalkboard gum sticking out of the men's room. However, there is something else wrong. Examine the male door plate symbol above the first door. You will see that it is peeling on one side. Yagami will find out that the men's restroom is actually the women's restroom, then the peeling is removed from the door plate. That's all the pitfalls of this section.
After a cutscene, Ebisu-sensei will go into rage mode and you will have to fight him. It packs a punch. If you get knocked down, he will somersault and deal massive damage to you and you won't have enough time to recover before that happens. If you play on a higher difficulty, it can shoot you.
Play defensively and only use the Tiger style to fight him. If you're using Snake, you can't deflect his attacks because they're mostly grappling hook moves. If you fail, the game is not over. Try again and the battle will start over. Once his health bar is gone, the side case is over.
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