A list of boss enemies in A Link to the Past.
Ball and Chain Trooper(Hyrule Castle (A Link to the Past) mini-boss)
Armos Knights(Eastern Palace)(Ganon's Tower)
Lanmolas(Desert Palace)(Ganon's Tower)
Moldorm(Tower of Hera)(Ganon's Tower)
Agahnim(Hyrule Castle (A Link to the Past))(Ganon's Tower)
Helmasaur King(Palace of Darkness)
Arrghus(Swamp Palace)
Mothula(Skull Woods)
Blind the Thief(Thieves' Town)
Kholdstare(Ice Palace)
Vitreous(Misery Mire)
Trinexx(Turtle Rock)
Ganon(Pyramid of Power)
Orange Arrghus
Green Helmasaur King
Green Mothula
Blind the Thief
Dark Links