Here is the full list of all 28 Manual Samuel achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.
Complete Story Mode Co-Op
Unlock all the Achievements in Manual Samuel
Get gold on every time trial
Blink 2000 times
Get bronze or higher on every time trial
Get silver or higher on every time trial
Went to work without shoes
Found every hashtag
Blow up Tony
Completed Sams house only breathing in 15 times
Skipped a cinematic
Kill every robot
Spoke perfectly
Made no stains on yourself
Complete Story Mode Single Player
Complete Level 8
Didn't skip any cinematics
Complete Level 7
Complete Level 6
Complete Level 5
Drink two cups of coffee
Complete Level 4
Drove 150 km per hour
Complete Level 3
Didn't fall down the stairs
Complete Level 2
Complete Level 1
Tip Tony