ROCKMAN3 ROCK Battle! Cool!

By MagnetFirstBro, YF_EC, DAXIGUA, A ZHI, Bipolar Power Studio

Posted by YiFeng_EC Aug 14, 2026

Game Name Mega Man 3

Platform Nintendo Entertainment System

Genre Platformer

Language English, Japanese

Status Complete

Type of hack Graphics, Levels, Gameplay, Music

Version Unknown

Release Date 2025-06-05

Downloads 249

Description

The newly released Rockman 3 in 2025, hacked with the name Rock Battle Cool, has undergone significant modifications in terms of art, gameplay, and music, greatly enhancing its playability. It utilizes the Japanese version of Rockman 3 and the Improved version of Rockman 3, rather than the American version of Mega Man 3.

This ROM Hack is owned by Bipolar Power Studio.

Hashes

Filename: Rockman 3 (Improved version).nes
CRC32: 2a9536ba
SHA-1: 974a8d98851d98365bb0e4b848b2dcd246223f2c
Verified: No
Filename: Rockman 3（J）.nes
CRC32: a782260c
SHA-1: 104d7c8bae79670a0c05df9994d3fc6e52086114
Verified: No

Gallery

Relevant Link

https://www.bilibili.com/video/BV1UCT7zaEkA/?spm_id_from=333.1365.list.card_archive.click&vd_source=b89c5b30614d1b2cf306bfd86afc8448

Reviews

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Last comments

YiFeng_EC 2025-08-11

169._xfImportSee，without any bug when i played it ，May I venture to ask if you use a physical computer or an emulator?

YiFeng_EC 2025-08-11

You can record a video and send it to my email：[email protected] to help me check how this bug was triggered. I didn't find this problem when I played it myself.

YiFeng_EC 2025-08-11

recommended to use improved RM3 file

YiFeng_EC 2025-08-11

Are you using RM3 files or improved RM3 this ips patch？

YiFeng_EC 2025-08-10

How did you trigger this bug? I hope you can give the complete trigger conditions so that it will be convenient for me to fix it.

YiFeng_EC 2025-08-03

I have updated the patch, and now it can be applied to both the Rock Man 3 Improved version of japanese and Rock Man 3 Japanese versions

YiFeng_EC 2025-08-03

I have updated the patch, and now it can be applied to both the Rock Man 3 Improved version of japanese and Rock Man 3 Japanese versions

Miagui 2025-08-03

I can't get this to work. I tried "Rockman3 Improvement.ips" from "Megaman 3 Improvement Ver 310" from kujakiller and the game starts, but it sends me directly to Dr. Wily fortress.

YiFeng_EC 2025-06-10

This requires the improved version of Kujakiller's Rocmkan 3 not Megaman3

mumpmander 2025-06-09

I can't seem to patch this one. I see it's asking for some IMPROVE ROM but I can't find any CRC-32 matching the one listed here. Any tips?