Hummer Differences is a Puzzle game on PFreeGames.com. You can play Hummer Differences in your browser for free. Find all differences between two pictures with Hummer Differences. Your job is to find five differences at each picture for 2 minutes. If you wrong five times the game will over for you. On T button on your screen, you can turn off the time meter. Try to pass all five levels fastest as you can. Enjoy.uck! Control: Use mouse to play this game.