to rank as the Android's most-downloaded free game app, while Bunny Shooter climbs up to second place after taking third last week.Angry Birds Rio and Seasons also remain popular downloads, while a trial version of Halfbrick's Fruit Ninja returns to the top ten at eighth.The GDC Vault service has debuted its second group of free lectures from last month's GDC Europe, this time featuring Douglas Wilson on intentionally broken games, Digital Chocolate on Zombie Lane

and Braid creator Jonathan Blow on truth in game design.In addition to these and other videos, slides for all of GDC Europe's sessions are now available for free, providing a glimpse into the wide range of notable topics discussed at the show.GDC Vault also hosts videos from previous conferences, including the classic postmortem series from GDC 2011, and other recently-debuted free videos such as this trio of nba18mt strategy game lectures from some of the industry's top developers.