Irregular Hunter X: The Day of Sigma

Megaman X - The Day of Sigma

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Alternative Titles

English: Megaman X - The Day of Sigma
Synonyms: Irregular Hunter X, MegaMan Maverick Hunter X: The Day of Sigma
Japanese: イレギュラーハンターX


Type: OVA
Episodes: 1
Status: Finished Airing
Aired: Dec 15, 2005
Producers: None found, add some
Licensors: Capcom
Studios: Xebec
Source: Game
Genres: ActionAction, Sci-FiSci-Fi
Theme: MechaMecha
Demographic: ShounenShounen
Duration: 30 min.
Rating: PG - Children


Score: 7.191 (scored by 56225,622 users)
1 indicates a weighted score.
Ranked: #29432
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #5181
Members: 10,547
Favorites: 51

External Links

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The year is 21XX. Reploids are commonplace now, after Dr. Cain rediscovered Dr. Light's old lab and based several designs off of Dr.Light's original, called "Megaman X." X, meanwhile, has joined the Maverick Hunters, and works with unit leader Zero under the command of General Sigma. It is their job to terminate rogue reploids, those who have become violent.

(Source: ANN)


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Related Anime

Characters & Voice Actors


Okiayu, Ryoutarou

Rockman X

Sakurai, Takahiro




Shimozaki, Hiroshi

Light, Thomas

Asou, Tomohisa

Chill Penguin

Ishino, Ryuuzou

Storm Eagle

Kageura, Daisuke

Cain, Dr.

Miyazawa, Tadashi


Original Creator


Opening Theme

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Amazon Music
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Ending Theme

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May 2, 2012
ktulu007 (All reviews)
Megaman X was first released in 1993. The series was the first of many spin-offs of Capcom's Megaman franchise and has been highly successful, receiving eight sequels (one being the Command Mission RPG), and a prequel OVA. That's right, back in 2005 Capcom and Xebec combined efforts and came up with an OVA prequel for the Megaman X franchise. Let's take a look at Maverick Hunter X: The Day of Sigma.

The story is pretty simple. It's about how Sigma went from being a maverick hunter, to the head maverick. For those of you who aren't familiar with the games, reploids are robots with the power read more
Aug 20, 2016
This one-off Mega Man X anime was included as unlockable content in the PlayStation Portable's Mega Man Maverick Hunter X, a remake of the first game in the series. I beat the game, which was the prerequisite to gaining the video, but for some reason I never watched it. It was a little unfortunate, as this bears the distinction of being the best Mega Man anime ever made. That's not saying much considering their generally average quality and the fact the games themselves were never strong on story, but if you've gained an attraction to the world and characters simply through constant exposure among the read more
Nov 19, 2017
Osocoldd (All reviews)
This movie is basically the prequel of Megaman X. The first Megaman X immediately before the first Maverick Outbreak. This game series was my personal favorite of all times and I played all 8 games to completion and I grew up off of this series.

With that being said my only disappointment is the lack of a sequel and further coverage of the Megaman X timeline. There are dozens of un-answered about the crossover between the original Megaman and Megaman X. And even the Megaman Zero and Megaman.exe worlds.

I had hoped that this would be the point of starting to fill those holes in read more
Feb 24, 2018
LSSJ_Gaming (All reviews)
This small bonus unlockable 24 minute OVA from the PSP game Maverick Hunter X was pretty good for what it was. This OVA takes place before the first MegaMan X game and shows how X and Zero's commander Sigma turned from being the lovable Commander of the Maverick Hunters to the cruel Maverick Emperor seen throughout the X series of games.
The art is very accurate to the character design from the X games. X himself looks very adorable yet badass which is kinda the point as X is a really kind robot boy at heart. Sigma doesn't have his Iconic read more

Recent News

Recent Forum Discussion

Poll: MegaMan Maverick Hunter X: The Day of Sigma Episode 1 Discussion
DarkBlue - Feb 20, 2008
25 replies by AzurealX »»
Feb 24, 6:46 PM
why x so powerfull and zero so fearsome.
salvationhope - Jun 15, 2013
0 replies by salvationhope »»
Jun 15, 2013 8:14 AM