Mario Finale

Mario Finale is Mario's original Final Smash in Super Smash Bros. Brawl and a Final Smash within a Final Smash used by Fire Mario in Super Smash Flash 2. It is used by fully charging the Super Fireball and then releasing it. Once released, the projectile will continue to grow larger until it goes off screen. However, fully charging the attack and using the "Mario Finale" drains all of Fire Mario's power reverting him back to regular Mario, ignoring the time bar.

Trivia
Prior to version 0.5a of the SSF2 Demo, before Fire Mario got brawlified, when he fully charged a Super Fireball and released it, it would become a mini-version of the Mario Finale, and though not near as powerful as the new one, Fire Mario would not have to transform back into regular Mario.