Tooth Invaders is a classic Commodore 64 game where you play as Plaqueman, tasked with fighting the evil Plague Germ D.K., who's covering all the teeth. Your mission is to use your trusty toothbrush and dental floss to defeat D.K. without making physical contact, or you'll be eliminated.
The gameplay revolves around navigating through the mouth while avoiding D.K.'s grasp. You must carefully pass the toothbrush through fluoride toothpaste to energize it, and then use floss to reach those hard-to-access spaces between teeth. If a tooth starts decaying, warning sounds will alert you to take action.