i've been playing this for a while (people with xfire probably see me playing it a lot)
my nick on there is DrFeelgood69 and i'm a double axe, so if you want to play with me, you have to play on the pro servers (i can't play on the noob servers [1-4] because im a double metal axe)
Fun game though, definently addicting. It is sort of like a worms RPG game, each game you play for gold and GP (Game Points?) which is sort of like experience for your character, if you get a certian amount of GP, you level up.
You can also buy things for your avatar (character) that make your avatar look differently, and each one does differnet things. Just a tip though, this game takes a lot of saving of gold if you want the good stuff, so be prepared to play a lot. And also, when you level up to a double stone hammer, you get a free helmet and armor...so keep that in mind.
cash, is when you "cash charge it"..i.e. you give gb some money though paypal or credit card, and you can buy stuff with money, instead of playing a ton to get the gold for them.
Some things you can't buy though with cash, like chief hair is gold only