Come on every one, this kid is asking a serious question, and we as Nintendo DS Fans Should give him the best possible help!  Our Forum Opinions Matter!  Ok, here's the real deal.  You should sell that Nintendo DS, purchase a ball and cup, a helmet, and go play in traffic.  It is apparent that you must not have a job, since you are relying on income from selling the DS.  Why dont you have a garage sale, sell all of your cabbage patch dolls, care bares, and barbie dolls instead?  Then you can own a PSP and a Nintendo DS.  But, I also am a man that likes to give alternatives.  This is what you should do, sell your DS to me for five bucks, plus any other expensive items you may have obtained through either pure luck or your parents supporting you.  This way you will build a solid foundation of cash to blow on a PSP.  I looked up Need for Speed for the PSP on GameSpot, I think it recieved a 1.4 rating, im sure you can get it for cheap.  Set the game to the hardest level, and it may take you months upon months to beat it.  That way you wont get bored so fast from beating everything.  Once you beat it on the most difficult setting, try blindfolding yourself.  You will find it much more enjoyable and challenging.