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