---
title: "GA-4 Guide Ahead Drop Rates (JP server)"
description: "GA-4 Guide Ahead drop rates on the JP server: Orirock Cube 82.47%, Device 63.92%; 97 samples (2022-09-16 to 2022-09-30). Sanity cost 12. Updated 2026-10-23. Crowdsourced Arknights drop data by Penguin Statistics."
lang: en
server: JP
zone_id: "act16side_zone1"
stage_id: "act16side_04"
as_of: 2026-10-23T14:49:35Z
time_zone: UTC+9
rows: 2
rows_total: 2
canonical: "https://penguin-stats.io/en/result/jp/stage/act16side_zone1/act16side_04"
api: "https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=JP&stageFilter=act16side_04&show_closed_zones=true"
license: CC BY-NC 4.0
license_url: https://creativecommons.org/licenses/by-nc/4.0/
attribution: "Data: Penguin Statistics (penguin-stats.io), CC BY-NC 4.0"
---

# GA-4 Guide Ahead Drop Rates (JP server)

Server: [CN server](https://penguin-stats.io/en/result/cn/stage/act16side_zone1/act16side_04.md) · [US server](https://penguin-stats.io/en/result/us/stage/act16side_zone1/act16side_04.md) · **JP server** · [KR server](https://penguin-stats.io/en/result/kr/stage/act16side_zone1/act16side_04.md)

Sanity: 12

Item drops of GA-4 Guide Ahead on the JP server, by percentage, highest first

| Item | ID | Loots | Samples | Percentage | Sanity Required Per Item | Time Range |
| --- | --- | ---: | ---: | ---: | ---: | --- |
| [Orirock Cube](https://penguin-stats.io/en/result/jp/item/30012.md) | `30012` | 80 | 97 | 82.47% | 14.55 | 2022-09-16 to 2022-09-30 |
| [Device](https://penguin-stats.io/en/result/jp/item/30062.md) | `30062` | 62 | 97 | 63.92% | 18.77 | 2022-09-16 to 2022-09-30 |

Samples: runs of the stage reported in the time range. Loots: total number of the item dropped in those runs. Percentage = Loots ÷ Samples, the expected number dropped per run, which can exceed 100%. Sanity Required Per Item = Sanity ÷ Percentage. Time Range: since the drop table of the stage last changed.

Updated 2026-10-23 23:49 (UTC+9). [Full data (JSON)](https://penguin-stats.io/PenguinStats/api/v2/result/matrix?server=JP&stageFilter=act16side_04&show_closed_zones=true). License: [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)