u can sell the game yes, you cant give them the source i think
As Newt said, yes you can do sell everything you produce with C2 if you got a license ! but the ones who buy it they have to contact scirra to get a license in order for them to resell the source game i think. since the rulles are simple, you make a C2 game and want to sell it for cash, you need a license. The buyers if they buy a C2 game and resell the source then its falling in that terms i think, but not if they only take the game like you said compiled formats.