If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In Salvation you are given the daunting task of saving these poor souls from purgatory which so happens to be the jaws of a big alien looking fish! Weird I know! However this game is fun and addictive! See the color splodge at the top of the game, well that is the color you have at any given time and you need to click the lost soul pertaining to that color, got it?! If no men floating downwards are the same color keep clicking the game screen until you come across the color you need! Good luck and have fun!