Please Help Me I Need Some Idea`s!

Hey i need some help figuring out wut i should do for my birthday party!
It will be on octber 8th (my birthday) on a saterday and i dont know wut to do!
See i wanna invite about 37 gurls and bout 15 boys but i just can`t figure out wut to do because some of them are shy and some of them are loud and some can be *obnoxis* some time`s but any ways like i dont know any fun game`s to play or where to go i live in vancouver washington and i`m turning 13. Do you guys kno any fun place`s to go or fun thing`s to do?
Plezzzz!
I am begging you to help!