This article/section contains information pertaining to unused content from games and similar media. This means it was never implemented into the game or was removed, cut or altered at some point of its development, and this article pertains to its original implementation.
Heat Shield was Fire Mario's side special move in the Super Smash Flash 2 Demo. Fire Mario surrounded himself with an electric shield which let him hover and parry enemy attacks. Fire Mario cannot be moved when the move was performed in the ground. This attack was used as a placeholder for the Golden Cape, which had not been programmed at the time. The sprites were ripped from Sonic the Hedgehog 3. This attack was removed in v0.5a of the demo upon the implementation of ItsameSMB's new Fire Mario sprite sheet. It is noted that this move actually increased Fire Mario's time limit.