I saw this bug before when he came out I didn't say anything thinking it would have been noticed by someone else and probably fixed already but It hasn't :( so sorry for the lateness. anyway
that blob is on his shoes and a friend of mine says her computer crashes when she equips those shoes so thats not good :( maybe this should be fixed right away? Links at the bottom if you can't see the full screen shot.
http://i7.photobucket.com/albums/y273/kira_zero/GrandChase20091104_061842.jpg
http://i7.photobucket.com/albums/y273/kira_zero/GrandChase20091104_061919.jpg