Unlocking the Chairlift
Finishing the Green route places the finished key and opens the lift. At that point the Chairlift is available, but Big Sit has not fired.
Big Walk Big Sit Achievement: How to Unlock It
Unlock the Chairlift through the Green route, then actually sit in a ChairLift car. Big Sit is tied to the Chairlift’s riding pose, not the unlock itself.
Big Sit is tied to the ChairLift cars themselves. The trigger is entering the sitting pose on a car, not unlocking the lift or standing at a terminus.
- Official requirement
- Ride the chairlift
- Verified trigger
- Enter the riding pose on a ChairLift car
Big Sit
Quick Answer
Unlock the Chairlift through the Green route, then board a ChairLift car and enter its sitting pose. The achievement is attached directly to the cars, so unlocking the system or standing at a terminus does not count.
Nothing beyond sitting in a car is required.
This is one of the gameplay achievements. See the full achievements list
Where Are You Stuck?
Pick the line that matches your run. The Chairlift system and the sitting pose fail for different reasons.
The Chairlift is still locked
That is a progression problem, not an achievement problem. Finish the Green Key route so the Chairlift becomes available.
Open Chairlift GuideHow to Unlock Big Sit
Three steps. Only the last one is the achievement trigger.
1. Make the Chairlift available
If the lift is still locked, finish the Green Key route first.
Open Chairlift Unlock Guide2. Go to a terminus
The Chairlift has a Start Terminus and an End Terminus. Either end works, so use whichever one you can reach.
3. Sit in a ChairLift car
Board a car and stay in the sitting pose. The cars carry the medal logic, so the seat is the achievement trigger.
If the achievement has not appeared, ride another car before replaying the whole Green route.
What Actually Triggers Big Sit?
Big Sit is attached to the ChairLift cars, not to the Green Key unlock.
The achievement logic lives on the cars themselves. It checks your pose while you are using the chair, so the medal is awarded from the car rather than from the lift system being open. That is why unlocking the Chairlift and sitting in it are separate states.
- Medal
- Chairlift
- Attached to
- The ChairLift cars
Verified game-data detail
You do not need any of this to ride the Chairlift.
- Component
- PoseMedal
- Native event
- PoseMedal.CheckAndAward
- Trigger surface
- ChairLift cars
Unlocking the Chairlift vs Sitting in It
Two different states. Only the second one awards Big Sit.
- 1Green Route
- 2Chairlift Unlocked
- 3Chairlift Running
- 4Sit in a Car
- 5Big Sit Trigger
Sitting in a car
Boarding a car puts your player into the riding pose the car is checking for. This is the state that awards the Chairlift medal.
Big Sit Not Unlocking?
Work down the list. The first line that is still true is the one to fix.
1. Did you actually sit in the chair?
Standing beside a car, jumping on the frame or touching the cable machinery does not put you in the pose. You have to be seated in the car itself.
Show Me the Sitting Step2. Was the Chairlift active?
If the lift is not usable yet, this is a Chairlift problem rather than an achievement problem.
Open Chairlift Guide3. Try another car
The pose logic sits on more than one car, so it is not tied to one special chair. If a car did not register you, step off and let another one take you.
4. Stay seated for a moment
Give the riding pose time to register before you step off. No minimum sitting time is published, so a couple of seconds is a retry, not a requirement.
5. Platform achievement delayed?
The in-game medal and the Steam or PS5 notification can update at different times. Check your platform achievement list before replaying the whole Green route.
What Is Not Proven to Be Required
These come up often, but none of them is required.
A full trip to the other end
You do not have to ride all the way. The cars check your pose, not your arrival at the far terminus.
One specific terminus
Both ends of the lift can be used to board, and neither one is named as the required starting point.
One specific chair
The same pose logic sits on more than one car, so no single numbered chair has to be the one you take.
Reaching the highest point
That belongs to Big Climb. Sitting on the lift does not depend on where the line ends.
A fixed sitting time
No specific number of seconds is required. Stay in the seat long enough for the pose to register.
Big Sit vs Big Climb
Both involve the Chairlift, but they are two different achievements with two different triggers.
Big Sit
Awarded from a ChairLift car while you are seated on it.
Big Climb
Awarded from the peak itself. The Chairlift can carry you toward that area, but sitting on it does not award the summit achievement.
Open Big Climb GuideBig Sit FAQ
Big Walk で「ビッグ・シット」を解放するには？
緑のルートでチェアリフトを開放し、チェアリフトの座席に乗って座ってください。メダルはリフトが開いていることではなく、座席から付与されます。
チェアリフトを開放すると「ビッグ・シット」も解放される？
いいえ。チェアリフトが使えるようになるのは座る場所ができるだけで、実績そのものは座席に属しています。
チェアリフトに座る必要がある？
はい。発動条件は座席での乗車ポーズなので、駅や座席の横に立っているだけでは足りません。
反対側まで乗り通す必要がある？
いいえ。発動条件のどれも、反対側の駅に着くかどうかに左右されません。
ビッグ・シットには特定のチェアリフトの駅が必要？
いいえ。チェアリフトのどちらの端も乗り場として使えます。
特定の座席が必要？
いいえ。同じ判定が複数の座席にあるので、特定の座席を探す必要はありません。
どのくらい座っていればいい？
必要な秒数はありません。降りる前に、乗車ポーズが認識されるまで十分な時間その姿勢を保ってください。
チェアリフトに乗ったのに「ビッグ・シット」が解放されないのはなぜ？
構造物の上に立つのではなく座席に座っていたか確認し、別の座席を試して、降りる前にポーズが安定するのを待ってください。
チェアリフトに乗ると「ビッグ・クライム」も解放される？
いいえ。「ビッグ・クライム」は最高地点に到達することで得られるもので、別のトリガーです。 Big Climb ガイド
先に緑の塔をクリアする必要がある？
通常の進行では、先にチェアリフトを開放する必要があり、そのルートは緑エリアを通ります。 緑エリアのウォークスルー
Related
Chairlift Guide
How to unlock the lift, where its ends are, and why it will not work.
Green Area Walkthrough
The Green route that ends at the Chairlift destination.
Big Climb
The summit achievement, with its own peak trigger.
Big Ride
The Train achievement, awarded for boarding a train.
Big Tunnel
The tunnel achievement, awarded for going inside one.
Achievements
All 12 gameplay achievements and the platform layer.
The Big Sit ChairLift car pose trigger and the sitting check last verified on 1 October 2026.