The Shield Sweep, known as Crawl Shield (クロールシールド Kurōru Shīrudo?) in Japan, is an EX Skill from Mega Man Zero 3. It is obtained by defeating Anubis Necromancess V with an A or an S rank. It changes the Shield Boomerang's charge attack so that it rolls forward on the ground. If Zero has the Thunder Chip equipped, the boomerang also leaves behind a trail of electric sparks to further damage enemies.