Rockman 4 Minus Infinity

Rockman 4 Minus Infinity is an extensive ROM hack of the NES classic Rockman 4 by Puresabe and offers a number of improvement and additions to a title which otherwise stuck to Capcom‘s blueprint for a Rockman title.

After the third, and seemingly final, defeat of Dr. Wily, Rockman picks the story up with our courageous hero setting out to save the world once again, this time from the threat of a new big evil, Dr. Cossack. Rockman 4 was released in 1991 for the Nintento Entertainment System by Capcom; although it was positively received, it was criticized for its lack of changes from previous Rockman titles.

New Game Features

This game has the following new features

  • New Levels
  • New Bosses
  • New Weapons
  • New Music

Game Description

If you want to see a video of Rockman 4 Minus Infinity in action, check out the video below.

YouTube video

Rockman 4 Minus Infinity sets out to bring much needed variety to Rockman 4 by setting up all new levels, enemies, bosses, and weapons for the player to explore and play around with.

This exhaustive hack pulls tricks and challenges from all across the Rockman franchise, presenting the player with familiar enemies and obstacles while offering plenty of new challenges such as control manipulation or bosses with specific “blind spots” the player must utilize or be mercilessly crushed. This is definitely one for the Rockman veterans.

Like many other Rockman hacks, this one can prove to be rather difficult without some knowledge going in regarding what bosses to take on first and subsequently what powers/abilities you will need to make your life much easier moving forward.

Title Screen

Rockman 4 Minus Infinity offers a title screen taking inspiration from its parent title, as seen below.

Rockman 4 Minus Infinity Title Screen


The developer had to use custom tilesets and some custom sprites for bosses and enemies to create this hack. Each level has a theme based around the boss that you have to face there. The graphics that the developer has created fit right in with the overall design aesthetic of a Mega Man title.


Rockman 4 Minus Infinity feels like a hack created from nostalgia as it throws familiar enemies and situations at the player from various other Rockman games. Player will experience a classic challenge not too hard or too easy in regards to the official Rockman games; this hack feels comparatively balanced when placed next to other Rockman hacks.

The AI of the bosses is a big not here as each and every one of them have very specific and interesting attack patterns that can take some time getting used to and can prove to be truly fiendish if you cannot manage to pick up on the timing for avoiding the majority of their damage. This came can prove to be a test of attrition but feels great once you get the hang of it.


This hack makes use of a number of soundtracks from a number of other popular games such as Fire Emblem. As such, many players will enjoy a pleasant surprise while they play through this one being graced with some of gaming best retro tracks.


If you wish to play this game you can download the Rockman 4 Minus Infinity Rom by clicking here.


So is this game worth a try? Rockman 4 Minus Infinity is a brilliant hack and labor of love by a talented ROM hacker. As a rework of Rockman 4 from the ground up, this hack stands a top many others for its fantastic level design and over all aesthetic as well as interesting and challenging bosses.

If you have played this game please let us know what you thought of the game by leaving us a comment.