# Boyoyon Sim. — Mystery Dungeon Strategy Tool

> Mystery Dungeon Strategy Tool (iPhone/iPad app by Shusuke Hashimoto.)

- Source: https://appshunter.io/ios/app/boyoyon-sim/id6757691173 (this page in markdown: same URL + `.md`)
- Developer: [Shusuke Hashimoto](https://appshunter.io/developer/1844193262)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 10 MB
- Languages: American English, French (France), German (Germany), Hindi, Italian, Japanese, Chinese (Simplified, China), European Spanish
- Released: 2026-01-13
- Data updated: 2026-02-04
- User reviews in markdown: https://appshunter.io/ios/app/boyoyon-sim/id6757691173/reviews.md

## What is Boyoyon Sim.?

This app lets you easily simulate Boing Wall throw patterns right on your device.
Recreate room size and wall placement to list valid throws (start position and direction) and visualize their trajectories.

＜Features＞
Easy wall setup: Place walls with tap/drag, switch paint modes, and bulk clear/fill interior areas
Clear results: Display trajectories on a grid with direction filters, sorting, and “returns to feet only” filtering
Safer testing: Option to exclude patterns where items leave the room
Smooth controls: Pinch-to-zoom and a mobile-friendly UI

Disclaimer: This app is an unofficial simulator and is not affiliated with any specific work or company.


## Version history (last 2 releases)

### 1.0.1 — 2026-02-03

・Modify displayed content

### 1.0.0 — 2026-01-14

No release notes.

## More apps by Shusuke Hashimoto

- [AIChatOCR](https://appshunter.io/ios/app/aichatocr/id6753650400)

All apps by Shusuke Hashimoto: https://appshunter.io/developer/1844193262

## Related topics

[thrownmacherin](https://appshunter.io/ios/topics/thrownmacherin)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-02-04.*