How to get
After a year of studying the SUPER|brie+ Factory from the limited time they were allowed access, some clever Trapsmiths have created a smaller, mouse-sized version that can retrofit into the pumps in the Queso River and increase their efficiency!
While hunting in the Queso River, this trap taps into the flowing queso and extracts it based on your current pump level. Once it has reached maximum capacity, it adds 500 bonus Bland Queso to your next pump!
Mousehunt Wiki page