Aspyr has released a demo version of Tony Hawk’s Pro Skater 4, which is available now for download from MacUpdate. The release follows Aspyr’s announcement last week that the popular skating game was shipping for both Mac and PC. “Players take on the role of legendary skateboarder Tony Hawk and 13 other professional skateboarders as they skate through enormous free roaming levels, choose from 190 progressively harder goals and build their skills to perform 14 of the greatest skateboarding stunts of all time.” The title is priced at US$39.99.