Things You'll Need
Instructions
Look up game ratings. There are consumer sites that rate games. Use these to determine the games you would like to purchase.
Check your resources. Sign onto the Internet, typing "trade-in Game Boy games" in the search engine. Look in the yellow pages for local stores who do trade-ins.
Compare pricing. Check many sites to find the right price for the game you have selected. Call around to find out prices in your area.
Consider the legitimacy of each Internet Web site. Consider how comfortable you feel using the site. You want to ensure that you receive what you expect. Search as many sites as possible in order to choose which is right for you.
Make your purchase once you have found the most economical price. Confirm that your order is correct upon arrival.