The Liquid Nitrogen Coolant is a purchasable cannon gear in Kids vs. Ice Cream. It costs $1800 to buy. It makes the ice cream cannon overheat more slowly when shooting and cool down faster while it is inactive. Additionally, it also increases chance of freezing of scoops from the Mint Chip Freeze Turret when hitting a kid.
It appears to be a blue nitrogen coolant with "NITROGEN" written on it two times.
Upgrade description Edit
"an advanced refrigeration system that drastically descreases the temperatura of your launcher. your launcher will overheat more slowly while being fired and cool down twice as fast while it is inactive. also increases the chance of mint chip scoops to freeze kids in place."