You can't. Besides mentioning that piracy is against the law, stands on shaky ethical grounds, and violates the xbox terms of service -- Even the people I know who are extremely tech savvy and did all the steps right to prevent detection still eventually got banned from live. Not worth it to wreck your already expensive game unit for a few free games. There is no way without modifying the console to allow playing downloaded (illegitimate) games without paying for them. May I recommend you use some of your free time to perhaps work, and get some money that way? If you are too young for a regular job then try shoveling snow, babysitting, dog walking, raking leaves, and other yard work. In no time you'll have enough money to afford all the games you want.