Tremors (1990)

BAD GUY: Giant worm named Stumpy

TASTY DEATH RATING: 9

REASONS: Kevin Bacon comes up with "a god damned plan" and runs toward the edge of a ravine. He throws a homemade bomb and the result explosion causes a super-sonic headache with Stumpy. The giant worm flies toward the opposite direction, then explodes out of the ground and plummets toward the rocks below. Indeed, a giant worm stampede.