I think the Hydra can´t even hit you most of the time. Its heads always went right over me or somewhere to the side (I died once cause I fell into the lake :D)
Still nothing new on the 360-Gamertag-hack-affair, but I got Arkham City for the PS3...probably gonna take a look at it tomorrow, looks like I´ll be working late today...kinda nice sometimes when it´s all quiet in the office
