Website and data research by 101Leafy.

Morpha

Morpha is a boss in Ocarina of Time on the Nintendo 64 with 20 or 11 or 1 health.

Navi's advice

Master of the Water Temple. It has absolute control of water. Pull out its nucleus and attack it!

KindBoss
DungeonWater Temple
Health20, 11, 1
PlacesWater Temple
EnglishMorpha
FrançaisMorpha
DeutschMorpha
日本語モーファ

Boss

Morpha waits at the end of Water Temple.

Once it is beaten, Link gets these:

Needs: Boss Key

Arena

The boss's room seen from above, north up.

Ocarina of Time N64 Morpha Map

Damage

How many points of health each sword, Deku Stick, and hammer hit takes off Morpha once it can be hurt. Other attacks follow the boss's own rules.

AttackDamage
Deku Stick2
Megaton Hammer2
Kokiri Sword1
Master Sword2
Giant's Knife4
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 Morpha 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.

DamageHeartsDouble DefenseEffect
161½Plain hit

Left behind

In the official guides

Boss of the Water Temple. Its small nucleus is both its weak point and its true body: pull it out of the water with the Longshot and slash it. Keep away from the water tentacles, which grab Link and throw him. The book lists no safe spot.

これがモーファの弱点であるとともに本体でもある。

ゼルダの伝説 時のオカリナ 完全攻略ガイドブック (NTT出版, 1999), p. 122, Translated by 101Leafy

Pull its nucleus out of the water with the longshot and slash it.

He relentlessly launched it at Morpha's core, and if he managed to harpoon it, he could strong-arm the nucleus out from its serpentine body.

The Legend of Zelda: Ocarina of Time Official Nintendo Player's Guide (Nintendo of America, 1998), p. 83

Grabs Link with watery tendrils. Pull the nucleus out with the Longshot and strike it seven times to win.

When Morpha attacks this way, lock onto the nucleus using Z Targeting and draw the nucleus in close with the Longshot.

The Legend of Zelda: Ocarina of Time, Prima's Official Strategy Guide (Prima Publishing, 1998), p. 87

A flexible water tentacle with a small nucleus inside, which is the real enemy. Pull the nucleus out with the Longshot and strike it with the sword; keep an eye on the tentacle, which grabs Link and flings him through the air, and stay out of the water, where it has the edge.

Dieser beeindruckende Gegner besteht aus einem hochflexiblen Wassertentakel, in dessen Innerem sich ein kleiner Zellkern befindet.

Der offizielle Nintendo Spieleberater: The Legend of Zelda: Ocarina of Time (Nintendo of Europe, 1998), p. 72, Translated by 101Leafy