- Country: Japan
- Genres: Action, Adventure, Animation
- Release: 2003-05-06
- Director: Hiroshi Matsuyama , Hiroto Niizato
- Writers: Kazunori Itô (story) , Kirin Mori (script: story) , Kirin Mori (story) , Mitsuhiko Sawamura (story)
- Language: English | Japanese
- Stars: Mona Marshall , Mona Marshall , Sayaka Aida , Wendee Lee , Wendee Lee , Masumi Asano , Kirk Thornton , Kirk Thornton , Yasunori Masutani , Yasunori Masutani , Yasunori Masutani , Crispin Freeman , Crispin Freeman , Nobuyuki Hiyama , Nobuyuki Hiyama , Nobuyuki Hiyama , Mary Elizabeth McGlynn , Mary Elizabeth McGlynn , Mary Elizabeth McGlynn , Mary Elizabeth McGlynn
- Runtime: min
- Awards: N/A
- AKA: .hack//Akusei heni vol. 2 , .hack//悪性変異 (Japan) , .hack//Mutation (United States of America) , .Hack//Mutation (Japan) , .hack//Mutation Part 2 (United States of America) , .Hack//Malignant Mutation (Japan)
- Plot: N/A
- IMDB:tt0367451
.hack//Mutation Cast
Mona Marshall
Kite
Mona Marshall
Kite
Sayaka Aida
Kite
Wendee Lee
BlackRose
Wendee Lee
BlackRose
Masumi Asano
BlackRose
Kirk Thornton
Orca
Kirk Thornton
Orca
Yasunori Masutani
Orca
Yasunori Masutani
Sanjuro
Yasunori Masutani
Moonstone
Crispin Freeman
Balmung
Crispin Freeman
Balmung
Nobuyuki Hiyama
Balmung
Nobuyuki Hiyama
Nuke Usagimaru
Nobuyuki Hiyama
Marlo
Mary Elizabeth McGlynn
Helba
Mary Elizabeth McGlynn
Helba
Mary Elizabeth McGlynn
Emma Wielant
Mary Elizabeth McGlynn
Emma Wielant