On the original LOZ when you bombed a Dodongo half way on their body they became stunned. Then they could be hit by a sword to give more bombs. This doesn't happen at all in ZC. In fact the Dodongo's don't drop anything ever.

They should automatically drop bombs when killed, and also they should be stunned and auto drop bombs hit the bomb explodes on the midpoint of their body. This works in the original LOZ.