⚠ Major post-game / ending spoilers.
Big Game
Big Game is Big Walk’s later completion achievement. It comes after Big Goodbye and it is awarded when you complete the second-ending flow.
Big Game is Big Walk’s later completion achievement. It comes after Big Goodbye and is awarded when you complete the second-ending flow.
Finish Big Goodbye first. Then continue the same save, follow the unlocked post-game route and complete the second ending. The achievement registers when that ending flow finishes.
They sit on the same progression path. Big Goodbye is the main ending; Big Game is the later full-completion ending. They are sequential, not a choice.
Big Goodbye
Main ending. The post-game still remains after it.
Big Game
Post-game / full-completion ending. This is the later achievement.
| Big Goodbye | Big Game | |
|---|---|---|
| Official description | Finish the game | Completely finish the game |
| Medal | Ending1 | Ending2 |
| Layer | Main ending | Post-game ending |
| Order | First | Later |
| Overflow route | No | Yes |
| Full completion intent | No | Yes |
| Guide | /achievements/big-goodbye | /achievements/big-game |
Big Game is not the same thing as simply reaching 100% on a local checklist. The ending flow still has to complete.
Pick the state that matches your save. Each answer stays inside what the current build closes and hands the rest to its owner page.
Your current state
ここは、現在のビルドで道筋が確定している進行の本線です。2つ目のエンディングより前はすべて関門で、ビッグ・ゲーム自体はエンディング達成の報酬にあたります。
コミュニティの攻略情報では、残りのパズルや紫チャレンジの消化が重要だと一貫して報告されています。このページでは、達成条件が確定している箇所に限って、必須数を正確に表示します。
Tick what is already true on your save. The page points at the next open step.
Finish Big Goodbye first, then come back to this page.
Open Big GoodbyeSaved on this device.
Big Game is awarded from the second-ending completion flow. The production data shows the achievement unlock being called when you continue from the Ending 2 completion screen.
Closed gameplay unlock hook:
This is the normal ending completion flow, not a special button. Finish the ending normally rather than quitting as soon as the final scene starts.
Functionally, Big Game is the game’s full-completion ending achievement, and current community guides consistently tie it to clearing the remaining main-game and post-game content.
For this site, the exact checklist stays owned by the 100% tracker. Only requirements closed by current game-data dependencies are labelled mandatory here.
So: Big Game behaves like a full-completion ending, but the mandatory count is not published as a serialized fact until the completion dependency closes.
These three groups are kept apart on purpose. The page never presents the community checklist as verified game data.
Reported consistently by independent guides, but not closed as a dependency edge here.
Until the completion dependency regression closes them, these stay off the mandatory list: exact mandatory puzzle count, exact Purple count as a dependency edge, exact required collectible total, exact required achievement count and the exact Overflow release threshold.
The Overflow Key is not another normal coloured five-cutter Big Key. It arrives finished from its own post-game state.
Do not take it to the ordinary five cutters.
Community aliases: final key / true-ending key / white key. This site uses Overflow Key.
Open the Overflow MonumentWork down this order before replaying any completion content.
1. Did you actually reach the second ending?
The Overflow Key is not Big Game. Holding the key is an earlier state.
2. Did you finish the second-ending flow?
Starting the second ending is not the medal completion hook. Finish the flow.
3. Do not quit at the first final scene
Let the normal ending completion and menu flow finish.
4. Check the platform achievement list
A missing toast is not proof the medal did not register.
5. Continue on the same host save
Post-game is a same-save continuation, so a different journey will not carry it.
If you already finished the Ending 2 completion flow and only the external list is empty, the remaining problem may be platform-side achievement sync.
A completion checklist being full is not itself the Big Game trigger.
Big Game is the Ending2 achievement, so you still need to follow the unlocked post-game route through the Overflow Key and the second ending, then finish that ending flow.
ビッグ・グッバイを終え、同じクリア後の旅を続けて、2つ目のエンディングのルートを進み、そのエンディングのフローを終えてください。ビッグ・ゲームで確認されている発動点は、Ending2 の完了メニューです。
コミュニティの攻略では、トゥルーエンディングや隠しエンディングと呼ばれることがよくあります。このサイトでは、そのエンディングの名前は「2つ目／完全クリアのエンディング」で、ビッグ・ゲームはそれに対応する実績の名前です。
エンディングガイドコミュニティの攻略では、残りのパズルを片付けることが重要だと報告されています。このページでは、依存関係が確定している要件だけを必須と表記しているため、パズルの正確な数はまだ必須条件として公開していません。
公式の表現は「ゲームを完全にクリアする」であって、「他のすべての実績を解除する」ではありません。無関係なプレイ関連の実績が、ビッグ・ゲームの直接の条件になっていることを示す確認済みの証拠は、今のところありません。
いいえ。このルートではカッターを使わず、専用のクリア後の状態から完成した状態で手に入ります。
2つ目のエンディングのルートと目的地の名前で、実績の名前ではありません。
いいえ。2度目のお別れはエンディング／目的地のラベルで、ビッグ・ゲームはそのエンディングのフローが終わったときに付与される実績です。
チェックリストが埋まっていることは発動条件ではありません。ビッグ・ゲームは Ending2 の実績なので、クリア後のルートを終え、2つ目のエンディングのフローを最後まで終える必要があります。
エンディングの完了フローを終え、最初のラストシーンで終了せずにクリア画面の先まで進めてから、プラットフォームのリストをもう一度確認してください。
Big Game — Completely finish the game
Post-gameNot Unlocking?