Dear Marth,
You have been accepted into "Super Smash Brothers Melee." You may have heard of something of the sort, but in case not, allow me to explain to you what it is. It is a place\organization and somewhat of an event where Nintendo characters, such as yourself, can meet with other Nintendo people from other worlds. You're strength will be continually tested by fighting battles against these characters. Don't worry, you shall immediately be healed once a battle has been won.
This would be the second year of this organization. Therefore, you might be able to tell that there were people here during the first year. Obviously, they are more experienced than you currently are. I am positive that they would be glad to show you around, etc. My top three smashers are probably the most reliable to explain everything. Those top three smashers are: Mario, Link, and Kirby.
Here at the Smash Mansion, you would be able to make yourself at home. But, you would be able to return to your homeland whenever, although it's not as easy as it seems. Don't worry if you don't understand. In sure the other smashers would love to explain.
Unfortunately, I will not be there for this year's Ssbm. My brother, Crazy hand, will be taking my place. Some thing you should know about Crazy... MAY GOD KEEP YOU SAFE AT THE MANSION DURING YOUR STAY! YOU NEVER KNOW WHAT IS GOING TO HAPPEN WHILE MY BROTHER IS THERE! One more thing: I beg of you, not to show this letter to Crazy. You do not want to know why. But, don't worry, I will be back next year... Hopefully.
I hope Crazy doesn't kill you. Good luck!
Master Hand