⚠ Ending spoilers
Big Walk Endings Guide
Understand Big Goodbye, Big Game, the Ending Key route, and what changes after the first credits — without mixing the ending route with the 100% checklist.
Main ending
Big Goodbye
Finish the game
Complete the main late-game route and finish the first ending.
○ Not reached
Reach Big GoodbyeLater completion ending
Big Game
Completely finish the game
Often searched as: True Ending / Secret Ending
Continue the same save after Big Goodbye and complete the deeper post-game route.
○ Not reached
Continue After Big GoodbyeEnding names and route shapes are shown first. Route hints and step detail stay behind the spoiler controls.
How Many Endings Does Big Walk Have?
Big Walk has two sequential completion endpoints on the same save: Big Goodbye first, then Big Game after further post-game completion. They are not mutually exclusive choices.
- Big Goodbye
- Post-game
- Big Game
| Ending | When | Game wording |
|---|---|---|
| Big Goodbye | Main journey | Finish the game |
| Big Game | Later completion | Completely finish the game |
The later ending starts from the same save file, so you can keep playing toward it after the first credits.
Which Ending Are You Working Toward?
Pick whatever you have already seen. The answer names the step in front of you and the guide that solves it.
What have you already seen?
Big Goodbye — The Main Ending
Achievement: Finish the game
Big Goodbye is the main-game finish. The late-game route runs from Black Tower through the Ending Key, and the achievement unlocks when you finish the first ending sequence and its completion flow.
1 / 6
Major progression
2 / 6
Black Tower
3 / 6
Ending Key
4 / 6
Ending plinth
5 / 6
Ending Gate / final sequence
6 / 6
Big Goodbye
✓ 完了 · ● 次のステップ · ○ 未解放
What Do I Do With the Ending Key?
The Ending Key comes from the Black Tower late-game route and is already finished when you are awarded it. Unlike the coloured-route Big Keys, it does not use five cutters, so it goes straight to its destination.
Ending plinth
A finished key stays a route blocker until it reaches its destination. For the Ending Key that destination is the Ending plinth, and the Ending Gate opens from that plinth.
Ending Gate and the final sequence
The gate opens once the Ending plinth is active. Behind it is the final sequence that ends in Big Goodbye.
The seven Black Sphere rooms are not a room-count requirement for the gate, and their exact relation to the final sequence is not confirmed yet.
Open Black Sphere GuideMain ending route
After Big Goodbye
Finished Big Goodbye?
Your main journey is complete. The same save continues into a separate post-game progression route.
○ Big Goodbye — Main journey complete.
The post-game route is the next thing to follow, not cleanup.
Big Game — The Later Completion Ending
Often searched as the “true ending”
Achievement: Completely finish the game
Finish Big Goodbye first. After that, continue on the same save. When your post-game completion state is ready, the later key route leads to Big Game.
Next objective: Start the post-game route once Big Goodbye is confirmed.
Big Game route in short
- Big Goodbye
- Post-game progression
- Deeper completion route
- Big Game
Post-game route
What exactly has to be finished first is still being verified, and guides count it differently, so follow the route rather than a reward number.
If your real question is what you are still missing, the 100% tracker answers that instead.
Ending Key vs Overflow Key
The two late-game keys are separate business, and neither one is a stage of the ordinary Big Key.
| Ending | Stage | Source | Cutters | Purpose | Detailed route |
|---|---|---|---|---|---|
| Ending KeyOlder guides also call it the Black Key or the final key. | Main ending | Black Tower reward | None | Opens the main ending route | Endings and Black Tower |
| Overflow KeyPlayers also call it the White Key or the true-ending key. | Post-game | Overflow Monument | None | Opens the later ending route | Post-game |
Why Can't I Finish the Ending?
Pick what you are seeing. Each answer checks the late-game steps in the order they happen and points at the guide that solves it.
What are you seeing?
後半のルートに行けない
What this usually means
まずは主要ルートです。黒の塔が開くのはワールドの進行によるもので、チャレンジの数ではありません。
What to check
- • 主要な色付きルートは、それぞれの目的地に到達しましたか？
- • 跳ね橋の先に広がる島は開放されていますか？
What to do
主要ルートを終えてから、後半のルートに戻ってきましょう。
Ending Achievements
Both endings are achievements, so confirm them on the achievements page and the status shown here follows.
Main ending
Big Goodbye
Finish the game.
Open Big GoodbyeLater completion ending
Big Game
Completely finish the game.
Open Big Game
Big Walk Ending FAQ
- Big Walkにはエンディングがいくつある？
- 順番に訪れる2つの完了地点：ビッグ・グッバイとビッグ・ゲーム。ビッグ・グッバイはメインゲームの終点で、ビッグ・ゲームはクリア後の内容をさらに終えたあとに訪れます。
- ビッグ・ゲームはトゥルーエンディング？
- プレイヤーの間では、真エンディングや秘密のエンディングと呼ばれることが多いです。ゲーム内では「ビッグ・ゲーム」という実績で、ゲームを完全にクリアすることを表します。
- ビッグ・グッバイとビッグ・ゲームのどちらかを選ぶの？
- いいえ。同じセーブデータ上で順番に起こり、最初のものをクリアしても何かが選べなくなることはありません。
- ビッグ・グッバイに到達するには？
- 後半の進行を終え、黒の塔の報酬からエンディングのカギを受け取り、エンディングの台座に置き、エンディングゲートを開いて、その先のシーケンスを終えましょう。 ビッグ・グッバイのルート
- エンディングのカギにカッターは必要？
- いいえ。受け取った時点で完成しているので、カッターのルートはありません。カッター5台の工程は、通常の色別ルートのものです。 Big Key ガイド
- エンディングゲートが閉じたままなのはなぜ？
- 開けるのは台座です。完成したエンディングのカギは、置かれるまでルートの障害のままで、部屋の数だけではゲートは開きません。 エンディングゲートの確認
- ビッグ・グッバイのあとは何をすればいい？
- 同じセーブデータのままクリア後に進みましょう。オーバーフローの連鎖が、そこから後のエンディングへと続きます。 クリア後ガイド
- ビッグ・ゲームには100%が必要？
- ビッグ・ゲームはゲームを完全にクリアすることと結びついていて、詳しい達成チェックリストはクリア後ガイドと100%ガイドにあります。報酬の数ひとつではなく、そちらのトラッカーに従ってください。 100%トラッカー
Ending names and the Ending Gate order last checked on 30 September 2026. The progress you mark on the walkthrough, the Black Tower page and the achievements page is saved on this device and read back here.