Stalfos

Damage

How many points of health each attack takes off Stalfos. 0 means the attack does no damage, though it may still stun or knock it back.

Attack	Damage
Deku Nut	0
Deku Stick	2
Fairy Slingshot	1
Bombs	2
Boomerang	0
Fairy Bow	2
Megaton Hammer	2
Hookshot	0
Kokiri Sword	1
Master Sword	2
Giant's Knife	4
Fire Arrow	2
Ice Arrow	4
Light Arrow	2
Din's Fire	0
Mirror Shield	0
Kokiri Sword (spin attack)	1
Giant's Knife (spin attack)	4
Master Sword (spin attack)	2
Kokiri Sword (jump attack)	2
Giant's Knife (jump attack)	8
Master Sword (jump attack)	4
Megaton Hammer (jump attack)	4

Hits to defeat it with each weapon: damage calculator

Damage to Link

Health Link loses when an attack of Stalfos hits him, one line per attack strength, 16 points to a heart. Once a Great Fairy strengthens Link's defensive power, the damage is halved, rounded up.

Drops

When Stalfos is defeated, the game picks one of 16 slots at random, so each slot is a 1 in 16 chance. Some slots hold nothing.

Item	Count	Chance
Deku Seeds	1	3 in 16
Deku Nut	1	3 in 16
Deku Stick	1	1 in 16
Recovery Heart	1	1 in 16
Nothing		8 in 16

Young Link gets Deku Seeds where adult Link gets arrows, and the other way round, and an adult's Deku Stick turns into a green Rupee. Bombs, arrows, seeds, and magic only drop once Link has the bomb bag, the bow, the slingshot, or magic, and a recovery heart at full health turns into a green Rupee.