Here is the full list of all 35 1st Core: The Zombie Killing Cyborg achievements.
Complete the Game on Hard.
Complete the Game on Medium.
Complete the Game Using only the Pipe as Weapon.
Use the Cheat Code....
The Right Day to Start a New game.
Recycle Something Wrong
Sound of Silence.
Start the game on Hard Mode.
Complete the Game on Easy.
Complete the Game as God.
Something you don't have to do in The Options Scene.
Kill a Spider 'the right way' on Stage 1.
Start The Game on God Mode.
Something to read in The Awards Scene.
Started the Game more than 5 times.
Destroy Both types of Hive.
Some Action you can do from Stage 2+.
Kill 100 on a Single Stage.
"Kill it with Fire" on stage 2
Buy All the Cyborgs.
Going back from The MissionMap Scene
Get +5 in Str, Dex, Speed & Per.
Level 10 Minigun
Get all 5 types of Weapons.
Level 10 Uzi
Level 10 Revolver
Take 5 ScreenShots
Take a ScreenShot with F12
Discover +75% of any map.
Driving over a bug to kill it.
Collect 100 KG of Garbage on 1 stage.
First time you make a HeadShoot.
Complete First Area, without killing anybody.
Start The Game on Medium.
Start The Game on Easy.