Usamune ROM patcher

Usamune ROM is a Super Mario 64 practice modification with tools such as savestates, input displays, timers, and level selection. The project’s Google Sites page describes these functions, and the independent SM64 emulator guide recommends the same project for practice. Use that project page as the starting point rather than guessing a domain from the name.

The project page links its patcher and manual and lists regional builds. Its update history records v1.93j, v1.93u, v1.93e, v1.93s, and v1.93vc on 2 January 2023, alongside the separate Singlestar v1.11 editions. That dated release history is one publisher’s record. It does not mean every edition accepts the same base. Match the Japanese, US, European, Shindou, or Virtual Console input required by the edition you select.

For the US cartridge edition, compare your big-endian .z64 against SHA-1 9bef1128717f958171a4afac3ed78ee2bb4e86ce. Both the n64decomp repository and the independent SM64 emulator guide publish this US hash. A byte-swapped .v64 or little-endian .n64 has different bytes and a different hash. Convert only when the patch instructions require that order; a regional mismatch is not repaired by renaming the file.

Open the project page below for its current patcher instructions. This site does not host a Usamune patch or a ROM. If you already have a patch file from the project, choose a tool that supports its actual format and retain the original dump. The patch extension and requirements belong to the downloaded release, so no universal patch format is assigned here. Related guides explain Mario 64 hashes, N64 byte order, and checksum errors.

FieldRecord
Project pageUsamune Projects on Google Sites
Regional editionsJP / US / EU / Shindou / Virtual Console; follow the chosen edition
US cartridge SHA-19bef1128717f958171a4afac3ed78ee2bb4e86ce
Release-history entryStandard v1.93 and Singlestar v1.11, 2023-01-02
Patch formatNot assigned; follow the selected release
Status2 independent sources for project identity and US hash; 1 project source for release history
Browser ROM patcher with two file slots and a patch button
Pixel-art CRT showing a blank cartridge, used as a visual marker

Questions

Where is the Usamune patcher page?

The domains checked on 7 Nov 2026 did not serve one. I am not substituting a reupload.

Can I use a Japanese Mario 64 ROM?

Not against this hash. The figure is the US cartridge dump.

Sources