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