Here is the full list of all 29 Pixel Cafe achievements.
Overflow 10 cups
Check the credits
Complete a level without wasting any food 10 times
Reach x30 combo multiplier
Serve a dish with 8 ingredients or more
Amaze 100 clients
Activate Special two times on a single level
Fully upgrade 1 hero skill
Fully upgrade all skills
Fully upgrade 1 counter
Fully upgrade all counters
Deal with 30 large orders
Serve coffee 100 times
Serve a client with less than 10% left on their timer
Spend 10 minutes using the music player
Beat 10 different levels by serving every client
Deal with 30 zombies
Deal with 30 dishbreakers
A newfound respect.
Reunite with an old friend.
Find what makes you whole.
Fix devices 50 times
Get 100% in one bar
Get 100% in all bars
Complete all nightmare levels
Get 3 stars on all nightmare levels
Burn 10 dishes
Celebrate with the Captain
Pet Rambo