Manda no Yume/guide

Spoon
(Headphones Effect is needed).

Enter the doo with a streetlight next to it. Equip the Headphones and go left. Go all the way down the road and interact with the needle on the ground. Go north and interact with the spoon.

Jacket
Enter the door with the streetlight next to it. Go right and enter the building. Go up the stairs to the roof. Interact with the sitting NPC.

Lamp
(Jacket and Matryoshka effects are needed).

Equip the Matryoshka and Jacket effects and enter the silver door. Go down and climb the ladder in front of the lake. Jump off the diving board. Go south-east and interact with the lamp in the box.

Body Pillow
Enter the plain white door. Go south and interact with the pillow.

Headphones
(Jacket Effect is needed).

Enter the silver door. Go roughly north-east and interact with the snowman standing between two speakers.

Bow
(Lamp Effect is needed).

Enter the green door. Go right and take the north-east path. Go up past the train tracks and equip the lamp effect. Go up and right and in the next screen, pick up the red bow on the ground.

Matryoshka
Enter the grey door with the streetlight next to it. Go right and enter the building. Go up the stairs to the second floor and enter the door. Interact with the NPC in the hall.

Coin
Enter the green door. Go right and take the north-east path. Go up past the train tracks and go down the ladder. Go right and interact with the coin.

Key
(Spoon and Jacket effects are needed).

Enter the cream door. Equip the Spoon and Jacket effects and go north-east. Kill the NPC in front of the gold door and enter it. Go up and interact with the throne.

Sword
Collect the disc on the floor of the Poet's room. Use the computer while dreaming and click on the Dustonia Online folder. Interact with the sword on the ground.

Original
(Sword Effect is needed).

Collect the disc on the floor of the Poet's room. Use the computer while dreaming and click on the Dustonia Online folder. Go south and keep killing slime until you reach level fifteen. Go south again to the docks. Talk to the NPC with the eyepatch and say yes when he asks if you want to join the guild.

After joining the guild, go back to the starting area and enter the house at the top-left. Go up the stairs and enter the door furthest to the right. Interact with the note on the floor.

Poet
Enter the green door. Go right and take the north-east path. Follow the train tracks to the left and go up the path at the end of them. Speak to the creature in front of the flashing objects and enter the password: POET. Go down the ladder and talk to the cloaked NPC. The poet will provide hints on effect locations.

Desk Train
If you go to where the train tracks are in the forest area, there's a random chance that a desk train will appear and pass you by.

Candy
Interact with the note on the floor of your dream bedroom.

Palace & Palace2
Gained by entering the room where the Key effect is.

Spoon and Jacket
Equip the Spoon and Jacket effects.

Lucky Coin
Equip the Coin and Key effects.

Fur Coat
Equip the Jacket and Coin effects.

Silver Key
Equip the Spoon and Key effects.

Golden Spoon
Equip the Spoon and Coin effects.

Loud Speaker
Equip the Spoon and Headphones effects.

Lightbulb
Equip the Lamp and Matryoshka effects.

Ceiling Fan
Equip the Lamp and Spoon effects.

Nurse
Equip the Body Pillow and Jacket effects.

Pink Gold Manda
Equip the Coin and Matryoshka effects.

Egg
Equip the Spoon and Matryoshka effects.

Bow and Arrow
Equip the Sword and Bow effects.

Bow and Pillow
Equip the Body Pillow and Bow effects.

Cat Headphones
Equip the Headphones and Bow effects.

Red Headphones
Equip the Headphones and Original effects.

Scarf
Equip the Key and Bow effects.