I am completely stumped. I’ve found 2 out of the four brain pieces, one in the game cartridge and the other in the women’s restroom. I have no clue where to begin to find the rest.
there is a large mural painting of snowy landscape that you can enter located just past grandmother's house that has a brain piece. The other brain piece is located in a movie theater you can access in the back of the chitin masks shop.