Go to the lady in hylrule castle and play the second dungeon.
Well you can buy a bomb bag from a shop... I think Beedle has em. And to get a bigger one, you play that game with the whip at that unimportant place...
you see a rectangular area place bomb in up right corner in the sand
You take a detour around the train.
Place a bomb where the lines of sight of the statues meet.
bomb the crack wall and see how the far of the other side door then go out and bomb the left side of sleeping something
you set the bomb next to the switch and hurry and run back to get another bomb and run across the bridge before the timer goes out and you then place?throw the bomb at the cracked wooden boxes and then you go from there. http://faqs.ign.com/articles/105/1053121p1.html that website helped me a lot.
you place it 1 square down and 2 squares to the left of the rectangle near the center of the sand sancutuary.
Find the FOUR OR FIVE big statues, find where there looking, and mark it on your map. Then, at the santuary, find were the spot would be on the grond(paths are rail lines) and blow it up with a bomb
Get a tear of lite-it'll give u invincibility for JUST A BIT! Hit all six bomb trains while ur invincible. The swirli thingies ar to warp u to the other end
Place a bomb in his path to stop him when he's in the alcove near the sign. After you do this, he'll give you a bigger bomb bag.
You can't, you have to try to avoid it. If it helps, you can blast it with the cannon 5 times to slow it down temporarily
Are you talking about how to get it, or what it is? How to get it depends on the game What it is... it's a bag...that carries bombs Good Luck! :3