I been playing Zelda(link to the past) for a long time and resently my game was erased. Before it was erased I had the second glove, the one where you could lift up the dark rocks) I have no idea how to get it back please help me??

You are looking for the Titan's Mitt which can be found in Blind's Hideout Dungeon's master chest.

Go through Blinds Hideout, when you find the girl who's locked behind a bunch of doors (don't worry, you only need the big key to open the doors) she'll have a chest beside her. A key is inside of it. GO back down and exit that room. Go to the left, there is a conveyor system with a locked door. Go through it, open the big chest, and you have the titan mitts.