Teens will become bored at a birthday party if you do not plan several fun games to entertain them. Plan games that your teen does not find boring or too childish. Award prizes for the winners of each game to keep the teens interested. Party games are also great icebreakers for teens that do not know each other well.
Sit all teens in a circle and give them 10 pennies (jelly beans or something to use as counters) each. Let the birthday girl go first by standing in the middle of the circle. She says, "I have never ever ____." Examples: "I have never ever been to Mexico," "I have never ever played Twister" or "I have never ever been hunting." Then she walks around the circle and collects a penny from each person who has done that. She selects the next person to go until everyone in the circle has gone twice. If a player runs out of pennies during the game, he is out until the next game. The player with the most pennies at the end of the game wins.
Purchase several balloons and prizes for teens. Prizes need to be small enough to fit into balloons. Put the prizes into balloons before blowing up the balloons. Examples include lipstick, make-up, money and candy. Also include a couple of big prizes such as gift cards. Just write the gift card amount, and name on a piece of paper and put it in the balloon. The teen who finds the paper wins the gift card. Place all the balloons in a pile and on "go," let the teens pop the balloons to win prizes.
Don't Let Go
Divide the teens into two, even teams. Have the teens stand in a clump and hold hands. On "go," the teens must try to make a circle without letting go of each other's hands. The teens must go above and underneath each other's arms and legs. They cannot let go of each other's hands; if they do, they lose. The first team that can form a circle wins the game.
Cereal Box Grab
Cut the flaps off the top of a cereal box. Have all teens get in a circle and place the box in the middle of the circle. Make sure there is plenty of room around the box in case the teens fall over. Let the birthday boy go first. Teens bend down and try to pick up the box using only their teeth. The only thing that can be on the floor is their feet. Each player gets three attempts to pick up the box. After three attempts, that player is out of the game. Each time a player is eliminated from the game, cut an inch off the box, which makes the box harder to pick up. The last player standing wins the game.