Shulk is the protagonist in which Monolith Soft’s role-playing game released in Japan in 2010? 
Shulk: Shulk (シュルク , Shuruku ) is a fictional character and the protagonist from Monolith Soft's 2010 role-playing video game "Xenoblade Chronicles", part of their overarching "Xeno" series of video games. Xenoblade Chronicles:  Initially released in Japan in 2010, and was later released in Europe in 2011 and in North America in 2012.
Xenoblade Chronicles