This is a easy job, you need get the game name, them Google or LinkedIn to found company developer, them touch in contact with developer and ask they to send you agreement for game distribution here at Brazil country, or foward the message from developer game company saying that are not interested in have another partner here at Brazil country. The terms for agreement should be the same they have signed with the company BoaCompra from the link down. You should contact all game developer company from BoaCompra website
Game 1100 AD
Send subject Brazil - South America Partner
On this message you explain you are a freelancer and if they are interested will reply you them you put me in contact with them, otherwise they will refuse and explain you reason.
Only after you get a ok or refuse, you got money, I pay 5 USD for each, if they delay reply more than 5 days them you send me cc e-mail and if is true address you got 2 USD. You can do many per day and get good money.