The tunics and gauntlets from the videos don't have an effect. They're just created by a Game Shark (because there are a few remnants from the Beta inside the Rom (the well known Debug Rom)) or achieved through glitches. It's unknown what's their real purpose was.
the gauntlets and tunics may do nothing in OoT but i cant imagine wwhat they could do in Ura Zelda and im begining to belive that master quests' redone dungeons are ura zeldas redone dungeons
but what i truly dont understand is that nintendo has the power to make 4 amazing zelda video games. if you dont know them well here they are ura zelda, the mystical seed of courage and zelda 64 beta (which is completly different from OoT)