Mega Man Anniversary Collection

The "Navi Mode" present in the PlayStation (Complete Works) re-releases of the first six Mega Man games is included in the Anniversary Collection versions as well. This mode adds helpers that provide game hints if the player is in need of help, revisions the appearance of the health and weapon energy meters and revisions the weapon subscreens for the first three games. The PlayStation 2 and Xbox versions include some arranged music for the first six games, also originally present in the Complete Works versions. There are also differences for the extras between each version. The PlayStation 2 version features the pilot episode of the Ruby-Spears Mega Man cartoon, while the GameCube and Xbox versions feature the Mega Man episode of G4's Icons. The Xbox version also includes the first episode of the Mega Man NT Warrior anime (based on Mega Man Battle Network series) and the ability to change the control scheme.

Some differences from the original games exist in a few cases. Several of the Nintendo Entertainment System games have remixed sound. In Mega Man 6, the arranged music is incorrectly mastered and suffers from extensive peaking. In Mega Man 7, an instance of the word "damn" was changed to "darn" in order to retain an E rating. In addition, the graphics of Mega Man walking away from Wily's Castle are absent from the credits sequence, as the developers were unable to port certain Super Nintendo Entertainment System graphical effects. In the compilation's version of Mega Man 8, some of the Robot Masters' voice clips play at incorrect pitches. The PlayStation version of Mega Man 8 is used, as opposed to the Sega Saturn version which included bonus features and additional boss battles.

Mega Man Anniversary Collection shares qualities with Rockman Complete Works, a lineup of remakes of the first six games in the original Mega Man series, released for the PlayStation in Japan in late 1999.[6] The six games were released individually, each disc containing a port of the original Family Computer version as the game's "Original Mode" and several extras. A "Navi Mode" was included, featuring a hint system in which a supporting character in each title gives tips to the player via a communicator, as well an updated HUD, an arranged soundtrack, and other optional game modes.[7]

A Game Boy Advance version of Mega Man Anniversary Collection was also in development and was originally due to be released concurrently with the GameCube, Xbox, and PlayStation 2 incarnations. The game, originally announced as Mega Man Mania, was to feature the five original Game Boy Mega Man games, as well as a history section and artwork gallery.[8] The game had its release date pushed back several times, with the delay rumored to be caused by Capcom lacking the games' original source code.[9] In January 2006, gamers contacting Capcom were told that the game had been placed on "indefinite hold". Capcom also began issuing refund checks to those who had ordered the game directly through their online store.[10] Around the same time, several retailers, such as GameStop, declared the game "cancelled" and issued refunds or store credits.

The collection received mostly positive reviews. The collection was slightly criticized for lacking somewhat in the extras department, and the GameCube version was criticized slightly more for not including the remixed audio for Mega Man 1-6. More controversial was the change in the GameCube edition's controls, which saw its fire and jumping buttons reversed from their original Nintendo Entertainment System configuration with no option to arrange them back making level progression much trickier as a result. Conversely, the exclusive extra in the PlayStation 2 and GameCube versions were both praised, with the GameCube version's interview being favored. The Xbox version rated slightly better than the other two versions, because of its added exclusive content as well as the exclusive bonuses from the PlayStation 2 and GameCube versions. However, it was given a score of 8.0 (versus 8.5 for the other two versions) from IGN for arriving late, in addition to occasional graphical glitches depending on screen settings, which become more apparent when played on an Xbox 360.

Mega Man Anniversary Collection was a financial success. The GameCube and PlayStation 2 versions of Mega Man Anniversary Collection sold a combined total of over 500,000 copies in less than six months of release.[28] Due to the popularity of Mega Man Anniversary Collection among fans of the series, Capcom followed up with Mega Man X Collection, a similar compilation consisting of games in the Mega Man X series which was exclusively released in North America on January 10, 2006.[29] Once again, Capcom followed up with Mega Man Zero Collection, a compilation of all the games from the Mega Man Zero series that was released in 2010 for the Nintendo DS. In 2015, Capcom released Mega Man Legacy Collection, which featured the 6 original games on the NES with bonus features and improved quality. In 2017, Mega Man Legacy Collection 2 was released and featured 7 and 8, plus Mega Man 9 and Mega Man 10.