Refrigerator

 is a Tier 5 Tank that upgrades from Icebox and Boomer at level 60.

Design
The greatly resembles the Boomer but it has the same decorative barrel as Icebox, as well as the same blue glow.

Technical
The fires boomerangs but like the 's blocks they inflict chill on hit.

Trivia

 * The Refrigerator's name is probably a play on other Boomer branches that start with "re-", such as Rebounder and Reverser.