Kyameron

For The Legend of Zelda: A Link to the Past on the Super Nintendo (SNES).

Where it is

Swamp Palace

From the official guides

A monster that keeps appearing from set spots on the water. Beat it and more keep coming, but freeze it and finish it with the hammer and it stops appearing.

ファミコン通信編集部責任編集ゼルダの伝説神々のトライフォースのすべてがわかる本 (アスキー, 1992), p. 106, translated by 101Leafy

Soft and squishy like an amoeba. Boil its water away with the Fire Rod and send it to heaven. If that fails, run. That is the basic plan.

任天堂公式ガイドブックゼルダの伝説神々のトライフォース上巻 (小学館, 1992), p. 131, translated by 101Leafy

Numbers

Hit points	4
Damage to Link, Green Mail	1 heart
Damage to Link, Blue Mail	½ heart
Damage to Link, Red Mail	¼ heart

Weapons

Boomerang	4 hits
Fighter's Sword	2 hits
Master Sword	1 hit
Tempered Sword	1 hit
Golden Sword	1 hit
Golden Sword spin attack	1 hit
Arrows	1 hit
Hook Shot	1 hit
Bombs	1 hit
Silver Arrows	Defeats it in one hit
Magic Powder	No effect
Fire Rod	1 hit
Ice Rod	Freezes it
Bombos Medallion	1 hit
Ether Medallion	Freezes it
Quake Medallion	1 hit