Now is the time to look at several buses in which we need to find differences. Behind these pictures are small differences. Can you find them? They are fun designs for you to play with. A game that is fun and educational because it will help you improve your observation and concentration skills. You have 10 levels and 7 differences, for each level you have one minute to finish the same. bus, difference, puzzle, HTML5, kids, mobile, skill, observation, concentration, visual perception, educational, fun, game, challenge, differences, puzzle game