Here is the full list of all 33 Traffic Jams achievements.
100% All levels
Cause 99 crashes by bowling with cheese
Throw everything in the office in the bin
Finish the bossbattle without any errors
Finish the game
Extinguish 76 fires
Make two fishes kiss
Flip off 999 people
Complete all missions in all versions of Gouda
Complete all missions in all versions of Paris
Complete all missions in all versions of Amsterdam
Complete all missions in all versions of Tokyo
Complete all missions in all versions of Ney York
Pop a total of 99 balloons
Get a multiplier of 69
Do 30 gestures within 60 seconds
Hit the guy with the sausages 7 times with ketchup
Drive over 365 zombies peeking out of potholes
Reach round 5 in a multiplayer game with 4 friends
Finish any level in multiplayer with a buddy
Crash 99 cars in multiplayer
Lets 99 pedestrians by safely
Lets 999 pedestrians by safely
Lets 9999 pedestrians by safely
Lets 99 cars by safely
Lets 999 cars by safely
Lets 9999 cars by safely
Cause 99 crashes
Cause 199 crashes
Cause 999 crashes
Kill 52 wasps
Play a level on every weekday for at least a week
Play a level on every weekday for at least a month