This PSA from the French ad agency CCLM BBDO and funded by the French outdoor clothing company Guy Cotten stresses the importance of wearing a life jacket. While this game is more movie than Pac-Man it does have a single mechanic. Scroll to save your life, if you fail or give up you're treated to a scene that will haunt your dreams.
Check it out here. It may be the most intense thing you've done on the internet in years.