Complete guide for Dedz0ne, as of version 1.0.
Intro
When Acht stands up, go left and enter the doorway. Interact with the four IV bags then go up the hall. Interact with the machine in the middle of the room to complete the intro. Talk to the doctor to save and interact with the bed to start dreaming. There are five hub doors: two on the center platform, two on the platform underneath, and one on the right-most platform.
Effects
Octopus
Transform into an octopus!
Appearance: Acht shifts into their octopus form.
Passive Effect: Acht can fit through small gaps.
Action: None.
Practical Uses: Allows Acht to reach new areas.
This effect is available to Acht by default.
Octobrush
Whack things!
Appearance: Acht equips an octobrush.
Passive Effect: None.
Action: (Z) When interacting with NPCs and certain objects, Acht will whack them.
Practical Uses: Allows Acht to kill NPCs and break objects.
Go to the bottom platform in the hub and interact with the hatch on the left. Exit the room. Go down the ladder, go left, go down the next ladder, and enter the first door on the right. Interact with the locker directly across from Acht then interact with the octobrush.
IV Bags
IV bags can be found in any order. Getting the Octobrush effect first is recommended.
Center Platform - Left Hatch
Go left from the hatch to a building with a giant pink and yellow mural on the front. Use the Octobrush on the mural then enter the tear that appears. On the other side of the tear, go down to a big tentacle with an X shaped cut, then go right. Cross the mass of tangles then go right and enter the hatch. Use the Octobrush on the NPC by the bed, then go left and enter the hatch. Interact with the IV bags.
Center Platform - Right Hatch
Exit the room. Go behind the building, then walk up and enter the hole in the wall. Interact with the glowing crack in the ground. Go north and interact with the IV bags.
Bottom Platform - Left Hatch
(These IV bags can also be found through the Right Platform Hatch.)
In the three rooms in this dream world, there is a vent on the wall that Acht can fit through using the Octopus effect. A series of connected pipes sit at the other side of each vent. Go down to the horizontal pipe and go right. In the hallway, go left and enter the first doorway that Acht reaches. Enter the giant hole at the back of the classroom. Interact with the hatch, then go right and interact with the glowing teal crack in the ground. Interact with the IV bags.
Bottom Platform - Right Hatch
Go down from the hatch, then go right and up to a large cracked pot. Break the pot with the Octobrush and enter the hole. Go south from the cave entrance. Go south again and interact with the glowing teal crack in the ground. Interact with the IV bag.
Right Platform Hatch
(These IV bags can also be found through the Bottom Platform - Left Hatch.)
Jump across the platforms by stepping onto the floating narutomaki and pressing the interact key. Head to the hatch door then enter it. Cross the horizontal pipe to reach a hallway. In the hallway, go left and enter the first doorway that Acht reaches. Enter the giant hole at the back of the classroom. Interact with the hatch, then go right and interact with the glowing teal crack in the ground. Interact with the IV bags.
Ending
When all IV bags have been interacted with, the words "You almost feel better already", will appear on the screen. Wake up and talk to the doctor. Select the progress option and a cutscene will play. After the cutscene, exit the room and go through the entryway at the top of the hallway.