The Ginosaji - The horribly slow murderer with the extremely inefficient weapon

The Ginosaji is a humanoid pale entity of unknown origin destined to kill the forensic pathologist Jack Cucchiaio by repeatedly striking him with a spoon. He refuses to use any other weapon and pursues his victim relentlessly across the world, including in freezing, underwater, and desert environments. His primary abilities include extraordinary stamina, allowing him to strike nonstop for years without fatigue, and immortality, rendering him unaffected by heavy weaponry which only briefly stuns him. He is highly skilled in spoon combat, excelling in spoon-versus-spoon fights and targeting weak spots for cumulative damage.

Spoon

• Refuses to use any weapon other than a spoon (source)
• Breaks Jack’s hand with his spoon (source)
• Breaks Jack’s teeth, causing significant bleeding from his mouth (source)
• Breaks the lenses of swimming goggles with his spoon (source)
• Cuts a phone cable with his spoon to interrupt a call (source)
• Throws his spoon with enough force to knock Jack down (source)
• Throws his spoon to make Jack drop a saw (source)
• Knocks away Jack’s spoon with a single strike (source)
• Knocks away Jack’s spoon with ease (source)
• His spoon withstands multiple clashes with a lightsaber without damage (source) (this happened inside a dream, so it’s probably not applicable)
• Carries multiple spoons under his coat as spares (source)
• Carries a wooden spoon as backup against magnets; it inflicts more pain than a regular spoon (source)

Stamina

• Pursues Jack in freezing conditions without stopping (source)
• Pursues Jack underwater without stopping (source)
• Pursues Jack in a desert without stopping (source)
• Strikes victim nonstop for literal years without tiring

Agility

• Dodges a hug attempt from Jack (source)

Durability

• Endures being stabbed in the throat (source)
• Endures chainsaw attack (source)
• Endures flamethrower attack (source)
• Endures being hit by a car at high speed (source)
• Endures multiple shots from a 9mm pistol (source)
• Endures being shot by an M-16 (source)
• Endures three shotgun blasts (source)
• Endures RPG-7 blast (source)
• Endures TNT blast (source)
• Endures lightsaber impalement (source) (inside a dream)
• Described as inescapable, unstoppable, and unkillable (source)
• Heavy weaponry causes no damage, only brief stunning
• Immortal and unaffected by attempts to kill him

Miscellaneous

• Invisible in photographs (source)