Sift Heads World - Act 6 unblocked is a great action and adventure game for you to play online. The story will lead you to a new challenge. After the headquarters of Vinnie and the gang is destroyed, they are on the way to find the culprit and stop them for good. In Sift Heads World - Act 6, you have to use the shooting ability that you have to eliminate all of the enemies standing behind the first attack. Help them survive and escape this trouble as fast as possible. Good luck!