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BPS Super Mario Bros. 2 Patcher

BPS Super Mario Bros. 2 Patcher is a free web tool that applies a BPS patch to a Super Mario Bros.

Place
#16 of 20
Score
5.4
BPS Super Mario Bros. 2 Patcher's website

What BPS Super Mario Bros. 2 Patcher is

BPS Super Mario Bros. 2 Patcher is a free web tool that applies a BPS patch to a Super Mario Bros. 2 ROM. Its page provides separate upload controls for the ROM and patch, followed by an Apply patch button. The patcher checks both files and shows an invalid-file message when it cannot accept one. It supports NTSC ROMs only; an invalid ROM may be a bad dump or from another region. The tool checks ROM and patch checksums for revisions 0 and A, adjusts the ROM revision to match the patch, and can apply a revision conversion patch. It also adapts the iNES header to match the patch. After patching, it saves a .nes file named from the patch filename. The page links to the project’s GitHub source code and credits Marc Robledo for Rom patcher JS. This is a browser-based tool rather than a batch or command-line patcher.

Good

  • Free to use in a browser
  • Checks ROM and patch files
  • Adjusts headers and ROM revisions
  • Saves the patched result as a .nes file

Watch out

  • Supports NTSC ROMs only
  • No batch patching
  • No command-line support

Who it suits

This tool suits people who need to apply a BPS patch to an NTSC Super Mario Bros. 2 ROM in a browser. It is not suited to batch or command-line patching.

Verdict

The patcher provides a focused browser workflow for applying BPS patches to supported ROMs. Check that the ROM is NTSC and that both uploaded files are accepted.

The facts

Each one read from BPS Super Mario Bros. 2 Patcher's own pages, with the date it was checked.

Where it runs

Apply patch
The page provides an Apply patch button.checked 5 Oct 2026
Browser access
The project is presented as a web page with file upload controls and an Apply patch button.checked 5 Oct 2026

What it does

Attribution
The page attributes the ROM patcher JavaScript to Marc Robledo.checked 5 Oct 2026
Header adjustment
The patcher automatically adapts the iNES header to match the BPS patch.checked 5 Oct 2026
Header handling
The maker’s code checks and swaps iNES 1.0 and iNES 2.0 headers while validating the ROM.checked 5 Oct 2026
Inputs
The page provides separate upload controls for an SMB2 ROM and a BPS patch.checked 5 Oct 2026
Interface attribution
The patcher page credits Marc Robledo for Rom patcher JS.checked 5 Oct 2026
Invalid ROMs
The page says an invalid ROM may be a bad dump or the wrong region.checked 5 Oct 2026
Limits
The patcher page specifies NTSC support and provides an SMB2 BPS patch upload control.checked 5 Oct 2026
Output
After applying the patch, the script saves the result with a .nes filename based on the patch filename.checked 5 Oct 2026
Patch input
The page lets users upload a BPS patch.checked 5 Oct 2026
Purpose
The patcher applies a BPS patch to a Super Mario Bros. 2 ROM.checked 5 Oct 2026
Region limit
The patcher only supports the NTSC version.checked 5 Oct 2026
Revision handling
The code recognizes ROM and patch checksums for revisions 0 and A, and can apply a revision conversion patch.checked 5 Oct 2026
ROM input
The page lets users upload an SMB2 ROM.checked 5 Oct 2026
ROM region
The patcher supports only the NTSC version; it says an invalid ROM may be a bad dump or the wrong region.checked 5 Oct 2026
ROM revision adjustment
The patcher automatically adapts the ROM revision to match the BPS patch.checked 5 Oct 2026
Source code
The project page links to its source code on GitHub.checked 5 Oct 2026
Source files
The GitHub repository includes BPS handling code, ROM file and hash code, two revision patch files, and the page script and styles.checked 5 Oct 2026
Validation
The patcher checks uploaded ROM and BPS patch files and displays invalid-file messages when they are not accepted.checked 5 Oct 2026

The company

Maker profile
Marc Robledo describes himself as a computer engineer.checked 5 Oct 2026

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