Battletoads & Double Dragon - The Ultimate Team - Famicom Expansion Port Support (NES) Romhack

This hack of Battletoads & Double Dragon – The Ultimate Team adds support for the Famicom Expansion Port Support.

code(with minor changes from me) by tepples from nesdev forum:

hacking Battletoads to read input from the Famicom Exp port

Since the game is also from Rare, the code for the controllers is identical, the only difference is in the addresses where the buttons are stored.

Hashes:

Filename: Battletoads & Double Dragon - The Ultimate Team (U) [!].nes
CRC-32: 53b02f3d
SHA-1: 61832d0f955cff169ff059bd557be4f522b15b7c

File download:

Help about patching:

Most of the files you're about to download need to be applied to your game. Here is a list of utilities that allow you to do this:

Online Patcher: Marc Roblero's online patcher. Works with many different file types.
Floating IPS: NWell-known patcher for applying IPS and BPS files.
Delta Patcher: Used to apply xDelta files.
More Patchers

On most files, you can also press “Patch It”, to apply the patch without downloading the file.

Write a review

Reviews:

Amazing

Written by: edwinmusic - February 3, 2026

Thanks again, what a great surprise! I recently bought a Famicom with RGB Lava 2.0 and there are some great classic games I couldn't play with the expansion port. Thanks for continuing to do projects like these; it will go down in ROM hacking history.