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How To Beat Alex Mercer The Easy Way (Any Difficulty)
By Robot3[RK]
What to defeat Mercer without dying? Want to kill him? Most of you are probably thinking nooooooo don't kill him! But the devs want us to kill him so here's how Mercer is going to die by starting with this guide. Also if Insane Mode Mercer is taking a hard time on you then you really should read this guide!
How to defeat Alex Mercer


The information below will guarantee your victory if you read carefully. Additional help is provided below via Youtube Video.
*Video sometimes stutters and audio will lag.* l.5x

Alex Mercer "First Form":

During the first Stage or his first form (in this case the Blade form) use your "whipfist" as your primary weapon and "hammerfist" as your secondary. When engaging for an attack, jump in the air but not too high or too far from Mercer (make sure when you jump you do not jump or land in the outer or edge of the map) then strike him with your "whipfist". Keep doing this process repeatedly after each strike. At some point, there will be an action button for your "hammerfist". Make sure you executive your "hammerfist" before it's too late. After that keep whipfisting him and repeat that whipfist process until his health is 0.

Tip: At this point, when his health is gone, press "Space" to dodge his air Blade forceful strike.

Alex Mercer "Second Form":

On this stage, your "hammerfist" is the best choice of murder. After you have dodged his helicopter (press space to dodge helicopter) use your hammerdive attack. Keep spamming the sh!t out of this move as you have no choice but to. Also, make sure when you are spamming the hammerdive, you do it in a similar fashion as the whipfist move like you did earlier in the first stage or first form.

Note: I don't remember if it was stage two or three but when he puts his hand down in the ground get away quick as this is his ground spike attack which can be very dangerous if you get caught in it (just found out he does this move on any form)! Also if he summons those birds (most likely on his third and final form) use your devastator move. Also when his health hits 0 and he jumps in the air, quickly hit "Ctrl" (your spike block)

Alex Mercer "Third/Final Form":

This stage is probably easier than the previous one. Anyways just do like you did with your "whipfist" just like his first form stage.

After his health is gone, press space to dodge is hammerfist and just do those quick action moves correctly and you'll be fine.

Congratz! You have defeated Mercer and won the game! Good job! :)


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Glaze May 21, 2017 @ 8:10am 
Hammerdive everything.
[82DK-DRM]A. Soldier Dec 23, 2016 @ 1:15am 
Eh, I just spammed the hammerdive during all the fights and won lol.

Still tho thanks for the guide, I was foolish enough to think I can stand on the ground longer when I had everything leved up and was on the last difficulty.
✯ !FoLeNN Aug 24, 2016 @ 11:50pm 
Thanks mate !
Robotic Exobytes Jul 31, 2016 @ 3:33pm 
I replayed the campaign on hard to get the last achievement (Standard stuff) and I just kept getting rekt by Mercer when he had Whipfist. Found this guide, beat him without dying any additional times. Cheers bro, you saved me from throwing my monitor out the window.
Prince of Darkness Apr 3, 2015 @ 3:16pm 
They simply Break out of eachother two people yet one person now.
Prince of Darkness Apr 3, 2015 @ 3:12pm 
U do realize heller dident kill mercer thats one reasion why his skin is available and the perks were introduced with Radnet DLC becose the idia was to bring Heller as close as posible to Mercer. I saw this on a vedio Intervew with the makers of prototype 2/
-DC- Catafracto (ESP) Jan 22, 2015 @ 7:00am 
Hard difficulty, done. Ty.
Rex 81-12 Dec 22, 2014 @ 6:11am 
My brother started off playing the second and I have only played the first... We got into arguments over Mercer apparently becoming the Antagonist in Prototype II which made me mad. I watched my brother fight him and I was very disappointed.
Rabbit of Caerbannog Sep 28, 2014 @ 9:02am 
buka567 Aug 25, 2014 @ 8:05pm 
это очень классная игра особено мне там нравяться усилители способностей и я очень жду игры протои 3 и я надеюсь что её скоро выпустят в продажу