metroid prime 3 is awesome in my opinion... and possibly one of the hardest games i have played, seriously yesterday i just spent half an hour trying to get rid of some flying space pirates (whatever there called i forgot i spent so long trying to get rid of them) only to find that i wasn's supposed to shoot the crap out them but was supposed to turn off 2 satellites then use the helmet function that operates your space ship to blow everything out the way... seriously i though get rid of the bad guys then do it, if your not good at thinking you will really struggle on this game i refuse to use walkthroughs so figuring that out was a must.
i cant beleive i spent half hour shooting them before it entered my head that maybe i wasnt supposed to be doing that.
and after a 4 hour marathon on the game after work and i still have not completed it, it is so huge

i think maybe i will relax for a while my brain and my arms both ache
awesome game though... if you have not played it yet definately should