I wanna buy left 4 dead on xbox but my bro has the xbox 360 in his room and dnt wnna fix it........?

If the Xbox is broken, you need to do this. Call the Xbox number and tell them you have 3 red rings around the power button. The first thing they want is the serial number. They'll tell you where to find it. They're going to ask you questions like what the color on the power box is. (Say Green) Just tell them you turned it on and the 3 red rings appeared and nothing happens. They will take down your name and address and send you a box to send your Xbox back in. They'll either replace it or fix it. They say it takes about 4-6 weeks to get back. BUT mine took about 3. It was surprisingly fast. Make sure to take the hard drive off before you ship it! lol If your brother is just being a d*ck. Kick him in the nuts or tell your parents fixing it is easy and you don't have to pay anything. (Which you shouldn't have to as long as Xbox believes what you tell them.)