Damned thing pwns me every damned time. I try to shoot the thing with the rocket launchers but the stupid lockon system keep firing 90 degrees at times because if someone runs across my aim it locks onto them instead.
Also dodging the rope thing... you can't dodge it... Hell, I hid behind the stairs and it fired right through the damned stairs ffs.
The game is OK but this Hydra is just ruining it for me.
Well I'm 37 so I'm not exactly a spring chicken either. As for upgrading your rocket launcher skill, that's not really necessary tbh. I hadn't done when I encountered it. I think it did kill me on my first try but then I tried again and just kept moving and diving around and fired rockets at it as fast as possible. That did the trick really.
The price of anything is the amount of life you exchange for it. http://aieeeee.dvdaf.com/owned
You can also throw everything at the Hydra, Cars, Rocks whatever. Just jump around like a maniac :) and keep throwing things/firing rockets. You can lock on the Hydra by holding LT, if you keep holding it the rockets will everytime be fired in the direction of the Hydra (if something is in its way, bad luck, but it will go to the Hydra)