yeah i know its old but im playing through it again cause im just that bored and i never beat it to begin with....and i need help XP
how or what monster do you get a K virus core? i've data drained like 20 different ones and i end up with c or m but never K!!!
Halp Please!

never tired it, i beat the .Hack//G.U. trilogy tough, excellent story, is with Haseo, kite´s brother, definitelly a must play for any action rpg fans (like lyself)

ahh i see well then i didnt know that thanks for that spoiler lol
i keep searching the net for answers but no one has them...most upsetting...its nice to see N00blet under my name now lol...tis not my fault i dont have the internet ^_^

try any of this walktroughs in the link below, once your in dial ctrl F and a keyword like K virus code and it will take you to it.

http://www.gamefaqs.com/console/ps2/game/551240.html

here's where you get virus cores.

Delta Server and Theta Server

Small-Size Monsters: Virus Core A
Medium-Size Monsters: Virus Core B
Large-Size Monsters: Virus Core C


Lambda Server (Battle Level 30 and below)

Small-Size Monsters: Virus Core A
Medium-Size Monsters: Virus Core B
Large-Size Monsters: Virus Core C


Lambda Server (Battle Level 31 and up)

Small-Size Monsters: Virus Core D
Medium-Size Monsters: Virus Core E
Large-Size Monsters: Virus Core F


Sigma Server

Small-Size Monsters: Virus Core G
Medium-Size Monsters: Virus Core H
Large-Size Monsters: Virus Core I


Omega Server

Small-Size Monsters: Virus Core J
Medium-Size Monsters: Virus Core K
Large-Size Monsters: Virus Core L

here's where you get virus cores.

Delta Server and Theta Server

Small-Size Monsters: Virus Core A
Medium-Size Monsters: Virus Core B
Large-Size Monsters: Virus Core C


Lambda Server (Battle Level 30 and below)

Small-Size Monsters: Virus Core A
Medium-Size Monsters: Virus Core B
Large-Size Monsters: Virus Core C


Lambda Server (Battle Level 31 and up)

Small-Size Monsters: Virus Core D
Medium-Size Monsters: Virus Core E
Large-Size Monsters: Virus Core F


Sigma Server

Small-Size Monsters: Virus Core G
Medium-Size Monsters: Virus Core H
Large-Size Monsters: Virus Core I


Omega Server

Small-Size Monsters: Virus Core J
Medium-Size Monsters: Virus Core K
Large-Size Monsters: Virus Core L

ahh thanks but i dont actually know the name of the servers ^_^; so yeah im not even sure if i am on the omega server.im at the point where mistral wants to see the data drain again.

Have fun with the series but i suggest in order to get the whole story like with some of the characters you encounter (like Bear, Crim, Subaru or Sora) watch the .hack//sign series and before you play the G.U. series, watch the .hack//roots series both of those anime series are prologues for the games. I just suggest this so you can get the gist of what's going on before the point where the players view comes in.