Hulk
The Hulk's physical durability represents one of the most remarkable phenomena in documented superhuman physiology. His skin can withstand temperatures exceeding 3,000 degrees Celsius and pressures that would crush titanium alloys. His healing factor repairs catastrophic injuries within seconds, including complete regeneration of limbs. He has survived nuclear detonations, sustained combat with gods, and being thrown into the sun. His strength increases proportionally with anger, theoretically approaching infinity under sufficient emotional distress. Scientists estimate his maximum lifting capacity at approximately 150 billion tonnes.
Spongebob
SpongeBob's resilience operates on entirely different principles, rooted in his fundamental lack of rigid structure. As a poriferan organism, he can be bisected, flattened, shredded, dehydrated, and reconstituted without permanent damage. He has survived being stepped on 847 times across the series, burnt to a crisp 23 times, and reduced to a pile of ash on at least 4 documented occasions. His cellular regeneration relies not on healing but on the simple impossibility of permanently destroying something with no vital organs. One cannot kill what was never organised enough to die properly.