Donut County headquarters and boss guide: safe and two-phase fight

This is not a hole-based physics puzzle section. Continue the conversation to reach headquarters.

1. Continue Mira and BK's exchange through the next scene heading to headquarters. If the message-emoji achievement remains, work on it when reply controls appear.

From here, return to headquarters' corridor as you use the red and blue cards to open two labs.

1. Send Trash King a message and swallow nearby objects. If you cannot get through the front entrance, collect Possum's hacking device.
2. Launch the device at the security camera and enter. This meets the Hacker condition.
3. Collect toilet paper, coffee and similar objects, then leave beneath the door for the corridor. Gather objects in the main hall and security room.
4. In the security room, launch the raccoon at the shelves to knock down their contents and the red keycard.
5. Return to the lab entrance and fire the red card at Biology Lab's reader. The safe can be opened by actions in the upcoming lab.

Press the magnet's buttons with the snake's tail. Enter the Bandit sequence here too.

1. Collect small objects and swallow the snake. Use its tail to press the arrow buttons and move the magnet above a cage. Use GRAB to remove the cage.
2. For the safe, press up, left, down, left and GRAB in order. Check the cutscene showing the safe opening.
3. Drop the frog's cage onto the ground to break it and collect the frog. Collect the bugs and birds in the other cages too.
4. Launch the frog at a fly to eat it. Fire the frog from the green mark beneath the rabbits' cage, letting it return to the hole with its tongue hooked onto the door.
5. Collect rabbits from the open cage and use the multiplying rabbits to collapse the lab. Return to the corridor and collect remaining rabbits.
6. Swallow the rabbit with the blue card in the main hall and collect the card. Enter the open safe in the security room and check Bandit before using the blue card to open Anthropology Lab.

Rockets must be lit as well as collected. Destroying the large monitor and operating the alarm mechanism are separate actions.

1. Collect objects in the first area and use the burning trash can to heat the hole. Collect the rocket in the next area and fire it at the alarm mechanism.
2. Put water from the pot in the hole and carry it to the mechanism beneath the large screen. This moves the turntable. Let the bird drink water to release the next projectile from the rocket dispenser.
3. Collect water again to move the turntable and let the bird drink. Leave the rocket on the ground.
4. Wait to the right of the rocket for the kiln to rotate around. Bring the hole to the pressure plate by the kiln door to release flames and light the rocket.
5. Collect the lit rocket and fire it at the large Trash King monitor for Disrespecter. For normal progression, also fire toward the alarm and proceed to the king's room.

Clear this area before the conversation. Check that you have collected what you need in the previous lab and safe before continuing.

1. Collect the room's donuts and approach Trash King. The fight follows, so prepare to dodge and launch objects.

Attack the boss with small bombs that fit in the hole. Avoid large bombs and keep moving so concrete does not block the hole.

1. Keep moving during bombardment, following wide circles or figures of eight near the outer edge. Avoid falling concrete and large obstacles left behind.
2. When small bombs fall, collect one before it explodes. Move into the wind beneath the boss and launch it to hit. Repeat until the conversation begins.
3. In the second phase, quickly collect the hacking device BK provides and fire it into the boss. Gather small bombs and launch them in succession at the stopped machine.
4. Collect the debris once the machine breaks. Use the hole's large vortex to destroy headquarters and the king's statue on the right, then check Dethroner.

Attempt Flawless and Game Over on separate runs. An undamaged first phase does not earn Flawless if you take damage or run out of time in the second phase.

This concludes the story after the boss. There is no new puzzle board.

1. Continue through the residents' return to the surface and check Redeemed. If Nerd remains, open every Trashopedia page from the menu.

Control the quadcopter in the epilogue. Pilot and Escape can be collected in separate locations.

1. Fly to the donut shop's large donut sign and pass through its central hole. Check that Pilot unlocks.
2. Find the anchor and chain floating in the sky and fly upward along the chain. Finding the hidden getaway vehicle earns Escape.
3. Use stage select after finishing to collect missed special achievements. Do not add another platform's platinum trophy to Steam's 20 achievements.