Here is the full list of all 26 Go-Go Town! achievements.
Find and drive a Pill Bug
High Five 30 times
High Five 10 Chickens
Win 10 Games of Rock, Paper, Scissors
Run over 20 People
Unlock Tier 1 Tech Tree
Unlock Tier 2 Tech Tree
Unlock Tier 3 Tech Tree
Unlock Tier 4 Tech Tree
Unlock Tier 5 Tech Tree
Unlock Tier 6 Tech Tree
Unlock Tier 7 Tech Tree
Unlock Tier 8 Tech Tree
Unlock Tier 9 Tech Tree
Get half way up the Town Ranking
Reach the top of the Town Ranking
Get 30 people to join the Town
Chainsaw down 200 Trees
Build 100 Building / Decorations
Drive for a Certain Distance
Drift for 30 Seconds
Catch 50 Fish, Grow 50 Potatoes
Drop off 150 Items to the Garbage Disposal
Get Grumbo to join the town
Achieve 10000 EGO
Obtain 250000 Coins