First how to destroy Nosferatu? You must take Alfred's Sniperrifle
before you go through the wall. Then on the roof you see that
Nosferatu is coming for you. Take the sniperrifle and blow his hart to
pieces!!! This is the quickest way to defeat him, and as far as I
know, the only way.

When fighting Alexia for the first time. Pump her full off lead. First
walk to the left side of the room and then work your way to the right
side, but you must shoot everytime she's away from you. When she is
right in front off you you must run or get burned.

Want to get both Jewels but you can't take them both? Turn the power
off!

Also you need a LOT off health packages when running away from Steve.
Every time he hits you with his axe you will loose almost all off your
health. But you must allways keep running, don't shoot him it won't
hurt him.

Don't put every dragonfly wing in you item box, when you find more off
them they will be put in one part off your inventory!

Also go to the office where you first saw Nosferatu and where that
damn irritating fly is flying around. When there use you halbred and
you will find a cube. Use your head with this one when you enter the
code in Alexia's lab. Alfred will fall out of Alexia's tube with a
emblem, which exists off two parts. Check it and a jewel will be
given.