Rhonda stabbing the Creeper through the bus' roof with a javelin - first in the shoulder, then in the eye. Bonus points for ruining the part he'd stolen from Darry in the first movie.
How about the moment when, after his head sustains heavy damage, the Creeper REGENERATES it after eating Dante's head?!?
The scene showing Jack Sr. making his harpoon and harpoon gun to use against the Creeper.
D's "Reason You Suck" Speech to Scotty, pointing out that, even if he is right, he conveniently left his own name off the list of people the Creeper targeted, before saying that he hopes Scotty gets eaten.
D: He looked at you too, "bro". He looked right at you and smiled. And when you had Jake the lights off him, he could have been licking his chops for all we know. So you keep your black list to yourself. You wanna keep this bus? Then you sit in it. Right under that big hole. See how long you last.
The climax; everything between the standoff between Jack Sr, his older son, and the Creeper (where they nail it with harpoons right before it can kill Andy and it flies through the air, dragging the truck along at some points as stye struggle to adapt), and Izzy tricking the Creeper into flying right through the window of a truck as it crashes, and Jack stabbing the Creeper at the end.
At the very end, we see Jack Sr sitting Vigil over the Creeper's desiccated corpse, just waiting for it to wake back up so he can kill it again. While his desire is simply to avenge his son over and over, he's also keeping the entire world safe from an immortal, man eating monster. Hopefully he'll pass the tradition onto his son and future generations.
