# Duck Hunt Disassembly: reconstructing the World release in assembly

> Duck Hunt Disassembly reconstructs the game's World release as NES assembly using nesgodisasm and an emulator code/data log. The assembly builds through ca65 and ld65, with a CRC-32 check against the target ROM; RAM-viewer experiments inform its variable notes.

- Type: Case study
- Targets: Game
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-09
- Original resource: <https://github.com/jpeisach/DuckHuntDisassembly>
- Primary source: <https://github.com/jpeisach/DuckHuntDisassembly/blob/ad06e657337e901f85ca57b157ade19ff4e22b68/README.md>
- Catalog page: <https://awesomerea.org/resources/duck-hunt-disassembly-case/>
- Record JSON: <https://awesomerea.org/resources/duck-hunt-disassembly-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/duck-hunt-disassembly-case/index.md)

## Requirements & limits

- **Prerequisites:** Target: Duck Hunt World (JUE) release with CRC-32 4644085e.
- **Prerequisites:** Building the ROM uses ca65 and ld65; nesgodisasm generates assembly, and an emulator can produce the code/data log.
- **Limits:** The code/data log is still a work in progress.
- **License:** No licence file in the repository.

## Primary sources

1. <https://github.com/jpeisach/DuckHuntDisassembly/blob/ad06e657337e901f85ca57b157ade19ff4e22b68/README.md>
2. <https://github.com/jpeisach/DuckHuntDisassembly/blob/ad06e657337e901f85ca57b157ade19ff4e22b68/Makefile>
3. <https://github.com/jpeisach/DuckHuntDisassembly/blob/ad06e657337e901f85ca57b157ade19ff4e22b68/NOTES.md>

## More in Games

- [Duke Nukem Zero Hour: decompiling the Nintendo 64 game](https://awesomerea.org/resources/duke-nukem-zero-hour/index.md) · Case study
- [Duke1Decomp: matching source snippets for Duke Nukem 1](https://awesomerea.org/resources/duke1decomp-case/index.md) · Case study
- [Duke2Reconstructed: matching Duke Nukem II source reconstruction](https://awesomerea.org/resources/duke2reconstructed-case/index.md) · Case study
- [Dunk Shot: commented MSX disassembly](https://awesomerea.org/resources/dunk-shot-msx-case/index.md) · Case study
- [dw3-decomp-expanded: matching Digimon World 2003 card-game functions](https://awesomerea.org/resources/dw3-decomp-expanded-case/index.md) · Case study
- [DX-Ball: an REA-guided function-level reconstruction with Codex](https://awesomerea.org/resources/dx-ball-rea-reconstruction-case/index.md) · Case study

## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.