PALO ALTO (Reuters) - Playing classic video games like Pac-Man with living single-celled microbes thinner than a human hair is now possible thanks to an interactive microscope developed by bioengineers at Stanford University.<div><a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=LJwh-VBtOFU:32zNNCbQrnk:yIl2AUoC8zA"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?d=yIl2AUoC8zA" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=LJwh-VBtOFU:32zNNCbQrnk:V_sGLiPBpWU"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=LJwh-VBtOFU:32zNNCbQrnk:V_sGLiPBpWU" border="0" /></a> <a href="http://feeds.reuters.com/~ff/reuters/technologyNews?a=LJwh-VBtOFU:32zNNCbQrnk:-BTjWOF_DHI"><img src="http://feeds.feedburner.com/~ff/reuters/technologyNews?i=LJwh-VBtOFU:32zNNCbQrnk:-BTjWOF_DHI" border="0" /></a></div><img src="http://feeds.feedburner.com/~r/reuters/technologyNews/~4/LJwh-VBtOFU" height="1" width="1" alt="" />