In Normal mode, the enemies don't take too long to kill and you don't get hurt as much. In Pro mode, the enemies are stronger and capable of killing you. This time, you are getting hurt more, you will definetly run out of healing items pretty fast so definetly be careful. Plus, if you think about it. Normal is normal mode. Not to easy but not to hard. As for pro mode, that's basically your hard mode.
yep. just beat NORMAL to unlock it. also, when you beat PRO, you will unlock the P.R.L gun.
He does come back at the next time you meet up with the merchant, it's only in pro that he stays dead.
beat the game on pro
You unlock it after beating Pro mode.
suminot
yes
Professional mode is already available for you to play. Try it if you think you can do it. It also depends on the type of game you have it on, if you have it on PS2, then you have to go through Normal mode and then you'll unlock Professional at the New Game.
I know that the only difference is that the pro has i think about 250 GB and a normal 1 has 20 GB.
conserve ammo. no matter how much you have. if you are facing one or two enemies just shoot them in the head, kick them down, and knife their bodies until they die
you have to pass it with pro mode
Complete the game in Professional (Pro) mode and it will be offered to you for free. Remember to save the cleared (completed) game. You'll see it in your briefcase (takes up lots of room) when you load a new game from a cleared game in Professional mode. xD
Do you mean the Plaga Removal Laser? If so, then here's what you do. All's you have to do is beat the game on Professional Mode. Then, you get access to one of the best guns ever. One it doesn't anything and two it has infinite power. All's you have to do is either holding X (PS2 version) or A (Wii version).