Were is the boss in goron mines?

I can't exactly remember where the boss room is, but I can check my game and find out for you. As for the crocs...use your shield attack(with the nunchuck in hand, puch forward a bit when your shield and sword are out) when they shoot something at you. It should ricochet off your shield and back at the croc. Hope I helped! And I will get back to you maybe tomorrow or even today about that boss thing if you haven't already found it. My advice right now is to go EVERYWHERE in the mines in every room and search. Also check your map. Scroll through the floors on the map till you find a darkened room with I think a skull on it.

The boss room is a room you get led to straight after you get the third Big Key piece. To defeat the crocodile things you have to attack their tails. To do this Z-Target them and circle around them. When they start breathing fire they will stop so then is your chance. It takes 2-4 hits on the tail to kill the beast so good luck, with the crocodile things and the boss.

Zelda_Fan

I don't remember where the boss is but I do know how to kill the crocodiles. When you first walk up to it, the little yellow arrow thing will be pointing at its head. However, you can not hurt it by attacking its heads. While it's shooting fire, roll around it and you should be behind it now. Now the yellow arrow thing should be pointing at it's tail. Z target the tail and attack it with your sword. Repeat this a couple of times and they should die.