If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Get back at your dentist and make him suffer just the way he made you. Use the Space bar key to make your character jump and chase down the dentist. Collect all kind of power-ups on your way which will help you catch him. Grab as many coins as you can in order to improve your high score. Do everything you can to put your hands on the man that brought so much pain to you and so many others. After you capture him start the torture. Good luck and have a lot of fun!