How to get
The ultimate base to traverse the Iceberg! No longer will you need to worry about switching bases while digging to defeat Icewing. This is a "one base fits all" solution to your previous multi-base problem!
• Increases the attraction rate of the Tunnel Rats mice
• Prevents any backwards movement from Brute mice
• Capturing Bomb Squad mice propels you forward 20 feet
• Strongly averts Zealot mice
• Provides the same bonus as the Deep Freeze Base
Mousehunt Wiki page