Here is the full list of all 12 Rats - there are Time is running out! achievements.
Find all the blueprints
Earn 150 stars
Kick a pig away
Reach the maximum speed
kick 5 guards away
Trigger the fire boot for the first time
Unlock 5 doors
Steal 1000 coins
Fight 25 guards
Eat 25 cheeses
Find a total of 5 minutes
Spend 300 second