Haydee 2 - Order of Operations

If you're lost in Haydee 2, this guide will direct you on where to go and what to do.

Introduction

While trying to get the achievement "Gone In 60 Minutes", I opened up a Wordpad file and wrote down what I had to do to complete the game as quickly as possible so I could reference it during a run (and avoid mistakes like forgetting a tool/keycard and having to go back for it.)

After I managed to get the achievement (just barely), I noticed there wasn't really a proper guide to the game published yet, so I decided to go over what I'd put in Wordpad and put it out there. It's a bit barebones, but it goes over all the objectives you need to complete before you can beat the game.

The objectives marked [Optional] may not be feasible or time-efficient if you're trying to get the speedrun achievement, but for a casual playthrough they are highly recommended.

Hopefully this helps if you're stuck somewhere and don't know where to go next!

Start in Engineering (Orange Zone)

• Get Pliers (defuses floor mines)
  
• Defuse Floor Mine x1
  
• Use floor mine to kill Slasher on return trip
  
• Defuse Floor Mine x2
  
• Place mine in front of gate before opening to kill Slasher
  
• Get Pistol

Go to Habitat (Red Zone)

• Defuse Floor Mine x3
  
• Get Screwdriver (opens air vent grates)
  
• [Optional] Get Sub-Machine Gun in Apartments (Use Screwdriver to open grate in Bar bathroom)

Go to Administrative (Green Zone)

• Head through Accounting to Personnel
  
• Open grate with Screwdriver
  
• Get Weapon Upgrade (Damage), apply to Pistol
  
• Get Wrench in Briefing (opens bulkheads)

Go to Medical (Teal Zone)

• Unlock Quarantine shortcut with Wrench
  
• Get Hacksaw (can saw through bone)
  
• Open access to Habitat (Red Zone)/Technical (Yellow/Dark Zone) stairwell by pushing button
  
• Cut off Hand in Morgue with Hacksaw (drop Hacksaw)
  
• Use Hand on Hand Scanner in Quarantine (drop Hand)
  
• Get Forceps in Quarantine (can be used to grab something out of reach)
  
• Get Crowbar in Lockers (removes boards)

Go to Administrative (Green Zone) through vent underneath staircase

• Defuse Floor Mine x2
  
• Get Pouch #1 in Archive (+2 inventory spaces per pouch)
  
• Break boards with Crowbar
  
• Get White Keycard in Supply
  
• [Optional] Get Green Keycard in Salary (Unlocks two doors in Administrative with Weapon Upgrades - Stability and Fire Rate)

Go to Habitat (Red Zone) Again

• Use White Keycard (drop White Keycard)
  
• Get Knife in Kitchen (cuts through tape)
  
• Unlock Stripbar with Wrench
  
• Use Knife to cut tape off manual override box, then use switch
  
• Get Pink Keycard
  
• Unlock Private Rooms with Pink Keycard (drop Pink Keycard)
  
• Get Teal Keycard (grab through pool grate with Forceps, drop Forceps)
  
• Get Pouch #2 in Apartments (Unlock room with Teal keycard)

Go to Engineering (Orange Zone) to the room you started in

• Unlock door with Wrench (drop Wrench)
  
• Go through Aggression L2, don't hit the gate switch just yet
  
• Defuse Floor Mine x2
  
• Pass through laser grid (Gate will lock behind you)
  
• Open path linking Medical and Engineering (Migration)
  
• Use staircase to return to Aggression L2, hit gate switch
  
• Get Orange Keycard in Aggression L1
  
• Get Spare Button in Projection (unlock room with Orange Keycard)
  
• Use Spare Button to complete gate switch in hall north of Projection
  
• Hit gate switch, open shortcut to main Medical lobby, circle around through Medical to Migration
  
• Get Pouch #3 in Packing (unlock room with Orange Keycard)
  
• Get Remote Controller in Utility (upper), use it to switch gates and open access to Utility (lower)
  
• Circle around and press button in Utility (lower) to open gate in Utility (upper)
  
• Get Jack Handle in Utility (upper)
  
• Use Remote in Motorics (viewing area) to open access to Motorics (testing area)
  
• Circle around to other Motorics entrance
  
• Get Bolt Cutters in Motorics (testing area)
  
• Go back around
  
• Get Button Device in Motorics (viewing Area)

Go to Habitat (Red Zone)'s staircase, then take a right to the Barracks staircase

• Remove planks in Barracks shower with Crowbar
  
• Continue through maintenance shaft

You are now in Security (Blue Zone)

• Pry off boards in Security Bathrooms with Crowbar (drop Crowbar)
  
• Open shortcut to main lobby through Checkpoint
  
• Use Bolt Cutters to open manual override boxes
  
• Use Jack Handle in Detention to operate Floor Jack and open gate
  
• Open grate with Screwdriver
  
• Operate gate switch to open access to staircase from Administrative (Green Zone) to Security (Blue Zone)
  
• Get Blue Keycard in Shooting Range
  
• Backtrack and unlock Interrogation with Blue Keycard
  
• Press button to unlock holding cell
  
• Get Pouch #4
  
• Walk past laser grid and head through Gym (defuse floor mine)
  
• Use manual override switch to reopen gates
  
• Go to Administrative (Green Zone) and use staircase to access Security (Blue Zone) through Detention
  
• Go through Control to the Duty Room
  
• Get Laser Grid Disruptor in Duty Room
  
• [Optional] Get the Rifle (Bring the Flash Drive in Offices to Surveillance to unlock gate in Armory and get Rifle.)
  
• Go to door marked "Stairs" next to Checkpoint and head up
  
• Use Disruptor to disable laser grid
  
• Get Weapon Upgrade (Capacity) in Comms (if you plan on using this for your pistol, wait until it's nearly empty - the upgrade will top off your ammo to fill the new capacity.)
  
• Get Nightvision Visor in Mainframe (defuse floor mine in hallway)
  
• Retrieve Disruptor and head down
  
• Exit through Checkpoint and unlock door to Hangar gate switch with Blue Keycard
  
• [Optional] Get the Shotgun in Engineering (Now that you have both the Bolt Cutters and Disruptor, you can now access the room with a Shotgun in the area where you first grabbed the Pliers.)

Go to Engineering (Orange Zone) and take stairs down to Technical (Yellow/Dark Zone)

• Go through Offices (defuse floor mine)
  
• Get Sledgehammer in Depot
  
• Go back to Offices, then downstairs and to the right
  
• Grab Power Module and bring it to the other powered gate, then head up through Stairs
  
• Unlock shortcut to main lobby of Technical through Pipes Control
  
• [Optional] Turn the wheel and go to Pressure, where you'll find a Weapon Upgrade (Stability). Be ready to fight two Slashers if you want this upgrade.

Take stairs up to Medical (Teal Zone)

• Break wall with Sledgehammer (drop Sledgehammer)
  
• Open path to main Medical wing through Conversion
  
• Get Gas Mask in Cerebral
  
• Grab Red, Green and Blue Vials (Plastics, Morgue and Drugstore, bring Teal Keycard to unlock doors)
  
• Equip Gas Mask and take stairs up to Medical L2
  
• Mix the three vials together in the Laboratory to create the White Vial
  
• Bring White Vial down to Ventilation in Technical (Yellow/Dark Zone) to neutralize the poison gas, then return to Medical L2 (drop Gas Mask)
  
• Get Yellow Keycard in Research

Return to Technical (Yellow/Dark Zone)

• Switch L2 Power Module from gate near Stairs to gate near Storage
  
• Switch L1 Power Module from gate near Ventilation to gate near Depot
  
• [Optional] Get second Weapon Upgrade (Damage) with Yellow Keycard, just downstairs from Office
  
• Make sure you have Knife in inventory
  
• Get Spare Button from Incinerator
  
• Use Spare Button at Warehouse
  
• Get Wheel
  
• Use Wheel in Maintenance (be wary of Slasher and floor mine)
  
• Get Fuse
  
• Cut tape off fusebox with Knife (drop Knife)
  
• Place Fuse in fusebox to restore area power
  
• Place Button Device on Button to operate gate switch
  
• Unlock door to Anchor Control with Yellow Keycard (drop Yellow Keycard)
  
• Return to area near Depot, grab L1 Power Module
  
• Head down to gate near Storage, grab L2 Power Module
  
• Use Remote to activate gate switch and bring both Power Modules to Anchor Control
  
• Use Power Modules to jump-start the Auxillary Core (defuse two floor mines)
  
• Use computer to initiate Anchor restart
  
• Flip a switch to reboot the Elevator systems
  
• Retrieve the Button Device before heading up
  
• Exit Technical (Yellow/Dark Zone) through the Habitat (Red Zone) stairwell up to Medical (Teal Zone)'s main lobby

The Final Stretch

• Go to Security (Blue Zone)'s main lobby
  
• Place Button Device on Hangar gate switch
  
• [Optional] Go back to the staircase vent in Administrative (Green Zone). A door that was previously gated off is now open after the power has been restored, and leads to a neat little easter egg.
  
• Take elevator to Level 3 (Technical)
  
• Grab the Plasma Cutter (At this point the countdown starts)
  
• Take elevator to Level 2 (Medical)
  
• Use Plasma Cutter to open emergency access port
  
• Open gates by pressing buttons
  
• Shoot wall-mounted mine before heading upstairs
  
• [Optional] The room ahead of you is a save room with an item box. If you've been using the item boxes, now would be a good time to grab any spare ammo and/or floor mines. (Be sure to leave a couple inventory spaces free so you can pick up key items.)
  
• Press button behind Entropy Mutant to open gate
  
• Grab ID Bracelet in Examination
  
• Use ID Bracelet to unlock door (discard ID Bracelet)
  
• Shoot wall-mounted mine next to door
  
• [Optional] There is a medkit in this room, but if you go for it a Slasher will drop from a ceiling vent. Drop a floor mine before going to get it.
  
• [Optional] The next two rooms will also have Slashers dropping from ceiling vents. Drop a floor mine below each vent, or just be aware that they'll be coming down and shoot them.
  
• Turn wheel
  
• Defuse or shoot floor mine
  
• Open vent with Screwdriver
  
• Grab Helium Tank from box
  
• Use Helium Tank to open door to Holding
  
• Shoot wall-mounted mine
  
• Press button to unlock gate to Cleaning
  
• Get Decoder
  
• Use Decoder to open door (drop Decoder)
  
• Defuse floor mine behind desk (doesn't seem to be a safe way to shoot it)
  
• Get Black Keycard
  
• Exit area through Examination and head up to Security (Blue Zone)'s main lobby
  
• Use Remote to switch gates
  
• Use Black Keycard to unlock flight controls
  
• Escape?

Conclusion

Hope this helped out! Let me know if I missed anything major and I'll be sure to address it.

[Danz]

Easy and helpful guide! Thank you :D

[Digging Snake]

an amendment to my prior post: Found it by going to the hour guide and following that, the fuse-box is located on level three, a few meters in front of the anchor door

[Digging Snake]

probably not gonna see this, but does anyone know where the fuse-box is? I found the fuse (crank has to be turned right outside of lower maintenance area) but the provided map doesn't appear to show where the fuse-box is: unless I'm just blind

[TuffMelon]

I just wanted to mention that for the mine behind the desk in the finale, you can shoot it from the floor above by firing through pretty much any of the railings.

[Aardworm]

I'm playing this game for the first time with a map and this walkthrough. Honestly, I think this game is best played this way as many people in this thread have mentioned: nothing is explained and nothing is clear/intuitive.

Also a quick as ave feature would've done wonders.

Anyway, underneath it all there is a very good survival horror game in here. You just need to download a map on your phone and follow your guide.

[DinkyAxe]

I was stopped initially due to the lack of a green card - then I found it, because initially the green card merged with the green background. Then I stopped in the blue one - it seemed to me that I got softlock, went through it several times, until somewhere (i don't remember where, rly) found a laser jammer and goes on. But only a few people will really find this teal card without guides, I swear. I wandered around the complex for 3 hours. I thought the teal card was in the dark zone. Okay, I have a NVG lezgo. But I didn't find anything at all. As a result, this fuckery-fuck-card is lying in the drain by the pool and I finally understood why these forceps are needed. I'm out, i'm just fucking out, it's horrible

Thx to author, because once again I realized that Haydee 2 is shit. I've never read the guides, but this time I couldn't stand it anymore

[DinkyAxe]

I fucking hate Haydee 2. Rly hate it. I can't imagine how da fuck i need to understand that the most useful item Teal card laying at pool drain. I've been stalking all over 4 zones to understand what i need. I have forceps. Maybe I need to get something from someone? No. I have a gas mask. What can I open in the medical area? Nothing, because you need a teal card. I have a laser jammer. Where can I apply this, other than the blue zone? In orange to get a weapon, but you've already done it, so nowhere. I have a remote switch. Where can I use it? In the dark zone at an unnecessary crossing, but it doesn't matter. GODDAMN FUCK there are a lot of rooms here, a lot of single necessary items, because you are constantly worried that somewhere you will need one or another tool. Yes, but it makes zero sense, literally

[Hermit Chang]

just finished the game thanks to this walkthrough. had to take a few swings at the final time attack but i made it! thanks a lot, I've tried for almost 2 years to figure it all out on my own but kept getting distracted by booba.

[Roli]

a 10/10 guide. the surprise 'resident evil' reference just before grabbing the plasma cutter was a kick in the nuts. hate these mandatory time attacks but whatcha gonna do it about it? thanks for your hard work and notes!

[Creator]

ah thanks.