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Mega Man II Music Improvement

Hack of Mega Man II

Description:

Mega Man II/Rockman World II is notorious as the black sheep of the Game Boy Mega Man games for many reasons. Perhaps the most glaring of these is its peculiar soundtrack, which is bizarrely high-pitched, off-key, and extremely grating compared to pretty much any other Game Boy game, let alone the rest of the series.

This hack attempts to improve the music by fixing two apparent errors:

1. The first is an objective programming mistake: the game’s note-to-frequency conversion table is wrong. Some values are correct while others are one higher than they should be, resulting in over a quarter of the notes playing off-key.

2. The more obvious problem, and the more subjective one, is that much of the music has the lead instruments set an octave higher than most people find pleasant.

Problem 1 is a simple fix: the frequency table has been regenerated with the correct values, fixing the out-of-tune notes.

Problem 2 has been handled, in most cases, by lowering the two square channels (used for leads) one octave and leaving the wavetable channel (used for bass) untouched. A few tracks have been handled specially; see the readme for details.

Note that the sound effects are unchanged, as they’re stored in a different format that directly specifies the intended frequencies instead of doing a note-to-frequency conversion.

Included in the download are three IPS files, one for each of the game’s regional variants (Japan, USA, and Europe).

ROM / ISO Information:

  • ===Japanese Version===
  • No-Intro filename: Rockman World 2 (Japan).gb
  • CRC32: C34D265E
  • MD5: C05B47DF8BDFE770BE228E51BC42DA84
  • SHA-1: 5D35BAA2FADD07796ED8B441F82ED5B136A999C7
  • ===USA Version===
  • No-Intro filename: Mega Man II (USA).gb
  • CRC32: E496F686
  • MD5: 7FE07271D04ED9E0BC0663DDE55A2AE4
  • SHA-1: 334F1A93346D55E1BE2967F0AF952E37AA52FCA7
  • ===European Version===
  • No-Intro filename: Mega Man II (Europe).gb
  • CRC32: 5E90CB48
  • MD5: B9CFEE05797BEB8FF7E259EE77EAF2FB
  • SHA-1: D19993A4630E7F9450FF6469115F4095F6F29667

Links:

Screenshots:


Credits:

User Review Information

The first Mega Man Game i ever beat.

Reviewed By: Mindflower on 25 Oct 2019

I’d like to join Spooniest, a recent reviewer, in the fact that this was the first Mega Man Game i ever succeeded in beating. Had played the first Game on the the Game Boy beforehand, but my skill of an early teen wasn’t enough to beat the first installment (how bad one was back then haha). I only beat Cut Man.

Back to topic, i have some fond memory of this game, it introduced me to Mega Man, the awesome “steal the enemies’ weapons” - mechanic, level selection and all the such. Like i said i did not have much reference back then so i enjoyed this game heavily with no bias at all. I even - and this is interesting - enjoyed the music. I cannot induce the same impression ever again.

I only came back later to this title, only to recognize its heavy flaws, game play - wise and especially in the sound department, where this hack comes in handy. It makes the bgm sound much more akin to the NES counterparts. I wish some sound effects would have gotten the same treatment too. The E tank sound, and the 1UP for example use an entirely different sound than the rest of the classic Mega Man Series. For me it was a double sword, with this being my first Mega Man game, i thought all the other Games of the classic series, that i played after that, got it wrong with the sound fx. :D To err is human. It would be nice to spare the rest of gaming humanity this odd mistake.

Last word to the song changes: i liked them all, it’s just that i think the end credits song lost some movement it had before. With that i mean one passage now has the melody moving up instead of down, which is irritating if you know the original. I’d recommend looking into that. But all in all good work! Recommended after all, absolutely

Version 1.0 Recommended - Yes

User Reviews
HeadlineAuthorDateVersionRecommended
Turns a black sheep into a hidden gemPowerPanda18 Apr 20201.0Yes
Definitely Easier On The EarsEldrethor18 Apr 20201.0Yes
Fixes a game breaking bug with the soundhdofu17 Apr 20201.0Yes
Very hard to go back to the original after thisChewbatrij02 Apr 20201.0Yes
Your ears will thank you.Chronosplit18 Apr 20201.0Yes
The first Mega Man Game i ever beat.Mindflower25 Oct 20191.0Yes
Music made bearable, and in some cases, goodThirteen 135504 Oct 20191.0Yes
Spooniest Bard ApprovesSpooniest02 Oct 20191.0Yes