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