Rats Invasion : Defend Kitchen

Uh oh! Anything but that! Hordes of ugly rats have invaded the house and left there nothing edible. It's time of reckoning! Take your toy cannon and try to strangle all rats throwing gas bombs at them. Give them no chance!
OMG! Rats are in the kitchen. Use what you go to defense! Fire, gas, knifes and kind of spring shot machine? Don't let any of them get away!