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