Egg Roll
Egg Roll is a special move used by Yoshi. It is a smash B move. The executor can steer it by pressing left or right, and stop the attack by pressing B again. In Melee, it can be used to increase Yoshi's horizontal recovery. It is easily countered, but acts as an efficient way to pass an edgeguarder (when Yoshi is off-stage), but if the opponent can reach the egg's height and hit Yoshi it is essentially followed by a death.
In Brawl, Yoshi's egg roll has higher priority. However, Yoshi's air speed is decreased while using the Egg Roll, making it useless as a recovery move.
The move seems to be unique to the Super Smash Bros. series, but may be based off of Yoshi's Story where upon eating a Turbo Tulip, Yoshi could encase himself into an egg and fling himself at enemies. A Similar technique would later appear in Mario Power Tennis and Mario Strikers Charged.