Need Ideas For A Preteens Slumber Party Games?

Yes. My birthday is in exactly one week and I have nothing planned to do except for have a sleepover birthday party with pizza, a movie, and cake. I need ideas for fun activities that doesn't include buying anything expensive, like some of those $30 party packets I saw just the other day. I`m a pre-teen with five friends coming over for my birthday slumber party, expecting fun games and activities. I need some help with ideas. Do you have any?

I'm a preteen my birthday is in 2 weeks and i'm going to have a slumber party with pizza a movie and a cake and we will put on some music and dance then i'm going to blind fold everyone take them somewhere but one person will be against the wall and i'm going to tie em up then we i will tell everyone to take off the blind folds and we will try the guess who tied her/him up (no one should be harmed while doing this it is a mystery game)lastly whoever goes to sleep first we get to draw on them and put a piece of cake and cupcake. (i will make a contract about that