Remixed music: Defeat Crash Man, Drill Man, Plant Man, Slash Man, Clown Man and finish Mega Man 2, Mega Man 4 and Mega Man 7 to unlock all of the music.
Interview with Keiji Inafune: Defeat Astro Man in Mega Man 8 (GameCube version), finish Mega Man 5 (Xbox version).
First episode of MegaMan NT Warrior: Defeat Astro Man in Mega Man 8 (Xbox version only).
First episode of the Mega Man animated series: Defeat Astro Man in Mega Man 8 (PlayStation 2 version only).
Likewise, the button configuration screens that the Complete Works versions originally had ended up getting removed for unknown reasons.
The "Save" and "Options" portion of the shop menu was removed from Mega Man 8, leaving two empty spaces where they once were.
Proto Man's whistle tune has a lower pitch in Anniversary Collection than it does in the original.
For example, the different pitch and speed of Aqua Man is more frequent in the GameCube version than the PlayStation 2 version. This difference in pitches and speeds can also vary between different versions of the game.
In Mega Man 8, a few of the Robot Masters' voice overs are different pitches and speeds ( Sword Man and Aqua Man).
After the player defeats a fortress boss, Mega Man blends in with the explosion, appearing only as a silhouette.
The PlayStation 2 and Xbox versions are closer to the originals.
The music is stilted, especially in the GameCube version where some tracks are louder than others and some instruments sound different (a unique music change is in Mega Man 7, where the music is pitched up slightly from the original tracks).
During the cutscene in the Robot Museum stage where Wily is escaping with Guts Man, his spaceship does not make any sound effects as it does in the SNES version.
Some passwords from the original Mega Man 7, such as all eight Robot Masters being available from the start, no longer work.
This was later fixed when the game was adapted to Mega Man Legacy Collection 2.
Wily's fortress, the ending consisted of just the credits without the accompanying animated sequence.
Mega Man 7s ending was slightly altered, due to the fact that the developers had problems emulating the Mode-7 effects.
This change was carried over to Mega Man Legacy Collection 2.
In Mega Man 7, when Bass and Treble are encountered at Shade Man's stage, he now says "Darn", rather than "Damn", due to the fact that the E10+ rating didn't exist at the time and "Damn" was obviously a mild curse word.
This correction was not retained in either the Virtual Console releases or Mega Man Legacy Collection.
X's speech in the original Mega Man 6, "My scheme for world domination has faild!", has been fixed.
This was later fixed when the game was adapted to Mega Man Legacy Collection.
Wily was escaping, has been replaced by the credits music for unknown reasons.
The song that played during the ending of the original Mega Man 5, while Dr.
In Mega Man 5, the Roman Numeral "V" (from "MEGAMANV") was changed back into a 5, just as it was in the Japanese version.
Wiley", and the dialogue is slightly changed when Dr.
Several platforms at the end of Wily Stage 1 in Mega Man 3 are altered, to be in line to the Japanese version.
The title screen of Mega Man 3 was altered slightly, so that Mega Man is placed to the far right (just as it is in the Japanese version).
The Special Weapons of Mega Man 1-6 can now be changed with the L and R shoulder buttons, as well as the C-Stick.
However, there are notable differences between Mega Man 2's "Normal" and Anniversary Collection's "Easy". The two options originally available were "Normal" and "Difficult" which correspond to Anniversary Collection's options "Easy" and "Normal", respectively.
The difficulty select was removed from the title screen of Mega Man 2, due to the fact that it's already available in Anniversary Collection's options menu.
The remixed music option for Mega Man 1- 6 is absent in the GameCube version.
All games (excluding the two arcade titles) have save features, although passwords for Mega Man 2- 7 are still fully operational.
Mega Man 2: The Power Fighters (defeat Junk Man in Mega Man 7 to unlock.).
Mega Man: The Power Battle (defeat Needle Man in Mega Man 3 to unlock CPS-1 version).