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← Corpse Party: Sweet Sachiko's Hysteric Birthday Bash
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Data from Steam — Steam Web API Terms of Use. Last updated .
| Achievement | How to unlock | Unlocked by | Rarity |
|---|---|---|---|
| In Hysterics | Unlocked all other achievements. | 20.4% | Uncommon |
| I Prossimi Zombi | Attained all endings in Chapter 7. | 21.4% | Uncommon |
| Names Washed Away | — | 22.1% | Uncommon |
| Tale of the Shroud | — | 22.7% | Uncommon |
| Naomi du Jour | Attained all endings in Chapter 6. | 23.5% | Uncommon |
| Attained all endings in Chapter 5. | 23.8% | Uncommon | |
| Completed Chapter 8. | 24.3% | Uncommon | |
| Completed Chapter 7. | 24.5% | Uncommon | |
| Attained all endings in Chapter 3. | 25.1% | Uncommon | |
| Attained all endings in Chapter 4. | 25.5% | Uncommon | |
| Completed Chapter 6. | 25.7% | Uncommon | |
| Completed Chapter 5. | 26.6% | Uncommon | |
| Completed Chapter 4. | 28.4% | Uncommon | |
| Attained all endings in Chapter 2. | 28.6% | Uncommon | |
| Completed Chapter 3. | 30.7% | Uncommon | |
| Attained all endings in Chapter 1. | 35.8% | Uncommon | |
| Completed Chapter 2. | 36.5% | Uncommon | |
| Completed Chapter 1. | 45% | Uncommon |