In this page, you will know about the many Perks and Collectibles in the game as well as the upgrades you will get for collecting a contraption (more on that later).
The Perks are permenant upgrades you can get when you kill enemies in specific fashions. There are Stealth, Mayhem and Tactical Perks which can help you one you know how to kill nemeis in a particiular way.
Fergus' Notes
This Johnny Blogue is so confusing, it makes my head spin. Well, what I learned is that these Perks are in levels, they start at level 0, and activate once they reach level 1 and max out when at level 5.
Stealth Perks
Perk
Tactic
Effect
Stealth Takedown
Kill Enemies Silently
Increases Movement speed while crouching
Enigma Codes
Collect Engima Codes from dead Commanders
Takes longer for commanders to raise the alarm
Thrown Hatchet Kills
Silently kill enemies by throwing hatchets
Increases your Hatchet carrying capacity
Quick Commander Kills
Kill commanders before they raise the alarm
Increases the killing power of silenced weapons
Takedowns or Tampers
Destroy mechanical enemies in close quarters or silently
Gain laser ammunition when you silently destroy a mechanical enemy
Mayhem Perks
Perk
Tactic
Effect
Heavy Weapon Kills
Kill enemies while using Heavy Weapons
Increases the Max Ammo of Heavy Weapons
Hangranate Kills
Kill enemies while using your Handgranates
Increases your Handgranate carrying capacity
Dual-Wield Kills
Kill enemies when dual-wielding weapons
Increases the max ammo of Light Weapons
Overcharged Kills
Kill enemies while your health is Overcharged
Reduces the rate your overcharged health drains
Close Combat Kills
Kill enemies with your hacthet in close quarters
Increases the rate your health regenerates
Tactical Perks
Perk
Tactic
Effect
Burning
Kill enemies while using fire based weapons
Reduces damage done by fire based enemy weapons
Electric Stun Kills
Destroy mechanical enemies while they're stunned
(Stun upgrade for Handgranates required)
Reduces damage done by laser based enemy weapons
Environment Kills
Kill enemies with explosive objects (e.g., Explosive barrels and other combustibles)
Reduces damage done by Explosive objects (including enemy Handgranates and rockets)
Enemy Grenade Kills
Kill enemies by throwing back their own Handgranates
Increases the time enemy Handgranates will explode
Headshot Kills
Kill enemies with a headshot
Get a killing power bonus when using your weapon's ADS (aim-down sights)
Contraption Perks
Perk
Prerequisite
Tactic
Effect
Constrictor Harness Kill
Choose or collect the Constrictor Harness
Kill enemies when using the Constrictor Harness
Increases movement speed when moving around with the Constrictor Harness
Ram Shackle Kills
Choose or collect the Ram Shackle
Kill enemies when using the Ram Shackle
Increases the value of Armor Items
Battle Walker Kills
Choose or collect the Battle Walker
Kill enemies when using the Battle Walker
Increases the ammount of ammo from enemy dropped weapons
Contraptions[]
During the game, BJ will be executed, but would be saved nevertheless. He will also be given a brand new body with a contraption made by Set. You can only only choose 1 of the 3 contraptions, by choosing one you will also be given certain upgarades.
Fergus' Notes
Now, don't let what Johnny just said discourage you, you can find the other 2 contraptions in several of the Uberkommadant side missions. I'll let Johnny handle that part.
Constrictor Harness[]
This contraption is for those who like stealth as you can squeeze through certain tight spots, just crouch and look towards either a tight spot such as a ventilation duct and you will enter it. You can collect this contraption in the Nuclear Bunker District in New York.
Anya's Caution
"Oh no. This is a scary contraption to me, and that is because this thing can also constrict William's breathing passages, causing him to suffocate, if he stays constrcited for too long, his health will drain."
Upgrade
Prerequisite
Effect
Cobra
Choose or collect the Constrictor Harness
Allows you to squeeze through tight spots and travel around pipes and ventilation ducts.
Silent Step
Choose or Collect the Constrictor Harness
Reduces noise when sprinting or jumping while making walking (either crouching or standing) totally silent
Terror-Billy
Choose or Collect the Constrictor Harness
Enemy motion temporarily slows down when an enemy is about to spot you. Allowing you to shoot and kill him before he spots you.
Iron Lung
Complete a side mission on the Eva's Hammer
Allows you to stay constricted longer without losing health
Ram Shackles[]
This sorta looks like a piece of safety equipment from Football. But instead this will allow you to run into fragile walls, just sprint and as soon as you hit the wall you will shatter it. You can find this contraption in the Beinville Disctrict in New Orleans.
Wyatt's Tips
"Oh wow. This is my personal favorite contraption. Not only can you break weak walls with this thing, but you can also use it to attack enemies, either killing them or stunning them, leaving them open to a follow-up attack."
Upgrade
Prerequisite
Effect
Rammbock
Choose or collect the Ram Shackles
Allows you to break weak walls and attack enemies
Sturdy
Choose or collect the Ram Shackles
Forces from explosives (from explosive objects and Handgranates) won't knock you down
Cannon Arm
Choose or Collect the Ram Shackles
Allows you to throw Hatchets and Handgranates further.
Mechanic
Complete a side quest on the Eva's Hammer
Armor self-regenerates
Battle Walker[]
A bit more difficult to use, but by pressing the jump the button (the X button by default) twice, you can activate this contraption, this will allow you to climb places that are normally out of reach as well as make you a more difficult target to hit for enemies on ground level. You can collect this contraption in the Transporthalle on the Planet Venus.
Upgrade
Prerequisite
Effect
Wanderer
Choose or collect the Battle Walker
Gives you the ability to reach higher places
Quick Draw
Choose or collect the Battle Walker
Slows down enemy motion when Weapon Wheel is up
Adrenaline
Choose or collect the Battle Walker
Get a small health boost when killing enemies
Stamina
Complete a side quest on the Eva's Hammer
Overcharged health won't drain until you take damage
Collectibles[]
Collectibles are just a little bit more than extra content, and they come in different shapes and sizes. Though some are in plain sight, but others require some investigation to find.
Fergus' Notes
"Eh, don't you worry if you don't collect all of the collectibles in one shot, you can always find them on either the Eva's Hammer or the Uberkommadant Side Missions"
Collectible
Effect
Gold Items
Unlocks certain character models
Star Cards
Adds to your collection of Star Cards
Concepts
Unlocks certain concept art for the game
Max's Toys
Adds to Max's Toy collection
Death Cards
Adds to your card collection (Only available in the Uberkommadant Side Missions)
Records
Unlocks certain music files
Readables
Reveals some interesting tidbits in this alternate world