Help!!!!!!!!

IM TURNING TWELVE THIS YEAR AND I AM INVITING ABOUT TWENTY FRIENDS TO MY PARTY.BUT I HAVE TO INVITE MY COUSINS THEY ARE FROM 4 TO 9.WHAT GAMES CAN I PLAY WITH MY FRIENDS THAT WIL AMUSE MY COUSINS I WAS THINKIN JUST HAVE DANCING AND GIVE MY BOY FRIENDS AND BOY COUSINS A FOOTY AND SOCCER BALL BUT WOULD THAT AMUSE THEM FOR ABOUT 4 HOURS.EVERY YEAR I JUST HAVE MY COUSINS AND THEY ARE SO AMUSED BY PLAYING TIPS AND WATEVER BUT THIS YEAR I HAVE ALOT OF FRIENDS WAT CAN I DO?.