I was wondering, how many hack// games are out there? Because i have three but i think there's more, and i think at E3 they showed a new one, so how many hack// games are there???

Also, how many Animes besides Liminality and The Secret of the Twilight Bracer?

I'm also stuck at the Last Boss of Hack// Infection and i can't seem to beat it! Do you have a strategy to beat him or a strategy to beat the Mu Warriors along the way???

Thanks in Advance :D

Games:
.hack//Infection
.hack//Mutation
.hack//Outbreak
.hack//Quarantine
.hack//GU (upcoming)

Anime:
.hack//SIGN
.hack//Liminality
.hack//Dusk (Legend of the Twilight Bracelet)

There's also a manga adaptation of Dusk, as well as a series of novels called AI Buster.

To beat Skeith, your best bet is probably to stay back and let your other party members attack him directly. Focus on healing (since you're undoubtedly more reliable than they are) and let them deal the brunt of the damage.

Thanks Prak, helped me a lot, going now to beat Skeith:D