Containers[]
"Unlike the Heart Containers, however, Magic Containers are very likely to be required to beat the game."
In Spells of The Adventure of Link#Thunder Spell: "Link learns this spell from the old man in the Old Town of Kasuto only after the young hero has increased his Magic Meter to the highest possible level by finding the four hidden magic containers."
As Thunder Spell is required for that bird like thing in that great palace just before that dark Link (~> Thunderbird), that would mean that it's not only "Magic Containers are very likely to be required to beat the game.", but in fact "Magic Containers are required to beat the game", or not? -Bernd 19:22, 6 August 2012 (EDT)