Super Dragon

Super Dragon is 's Final Smash in Super Smash Flash 2. Yoshi grows wings and gains the ability to breath fire. While in this form, he's granted infinite amount of jumps and can shoot three fireballs by pressing the special attack button. Each of the fireballs deal 17% and high knockback, spreading upon being shot.

Unlike the Final Smash in Super Smash Bros. Brawl, Yoshi is able to take damage (but no knockback) in this state and can't perform Fire Breath; despite this drawbacks, unique to Super Smash Flash 2 is that after the move finishes he's sent upwards, which can help with recovery had the transformation ended when Yoshi was too low near the blastzone.

Origin
Super Dragon is based on the ability in Super Mario World to fly or breath fire by eating Blue or Red Kooppa Shells respectively. However, only one of this abilities could be used at a time and would be lost after spiting out the shell.

In the same game, eating the Rainbow Shell would grant Yoshi both moves and would make him transform into a similar version of Super Dragon Yoshi, but could still only spit one set of fireballs.