Prototype

Select the "Extras" option at the main menu. Select "Cheats", then enter Right, Right, Left, Down, Up, Up, Up, Down as a code to unlock Alex Mercer's devastating body surfing ability. A message will appear to confirm correct code entry.

At the main menu, select the "Extras" option, then choose the "Cheats" selection. Enter one of the following codes to activate the corresponding cheat function. If you entered the code correctly, a message will appear.

Body Surf ability
Enter Right(2), Left, Down, Up(3), Down as a code to unlock the Body Surf ability.

Quickly switch to Armor and Blade after the cutscene ends. Having Infected Vision will help. Stay away from the Boss until he starts to jump. After he lands, attack him with an Air Blade Slash. He will become stunned after a few good hits. Grab him and repeatedly punch. If you are taken down to critical level, use a Devastator move to stun him.

This Boss battle may seem hard, but it can actually be easy. Long before the battle, purchase all upgrades that allow you to do +3 Devastator attacks, upon max health. It is also recommended you get all upgrades possible through the "Consume" option. The Boss is massive. Notice that under her health bar are other bars. These are the Boss' stabilizers, making her vulnerable only after you have severed them. At the beginning of the battle she will do a scream attack. Be careful. Scale up a building or whatever else you can. It is very easy to avoid. You will also have Hunters and Infected chasing you. Use the full body armor and claws/blade. Max out your health by running around and consuming. It is easy, and the only issues you might have are Hunters, but with the upgrades one hunter can nearly boost your health to max, allowing for maximum Devastator attacks. This is one of the first Devastator attacks you learn. Scale a building, boost over to her, fall, and initiate the attack. You will quickly see the Boss' stabilizers are being damaged. Note: Every round the stabilizers' health will increase, meaning that you have to follow the tactics in the same way, and it will just take slightly longer. Strike her with the Devastator. You should have a chance for more, unless she does multiple attacks (green orbs that track you, spitting concrete, and screaming). The armor reduces the amount of damage inflicted, allowing you enough time in-between attacks to initiate the Devastator again. Once the stabilizers are destroyed, she will fall, and you can attack normally. She will then retreat (leaving you plenty of red health orbs to consume) before shooting out of the ground again, with more stabilizer health and "backup". Ignore the backup. This tactic works nicely, but if you get low on health, run away from her view, and keep consuming. After she falls a total of three times, you will have defeated her.

An easy spot to complete "Half-Truths" is the mission in which you lead the Leader Hunter to Ragland. Complete your objectives unnoticed (shouldn't be a problem) until you are prompted to lure the Hunter. Look at the map and notice that it is mainly covered in red (infected zones) and two blue (military) zones, one on the far east and far west. There is an unclaimed area straight up the middle. Stick to this path and you won't alert the military as they have their hands full already.