Revealing mistake: In the bone organ scene, right after Andy plays the second correct note, when Data runs to the entrance the entire stone floor is intact, then it disappears again. (01:21:30)
Other mistake: When the Inferno is in the cave the vessel's sails hang or are furled a specific way on the masts, but when the ship sails past the beach the rigging differs significantly. (01:23:45 - 01:47:40)
Revealing mistake: When Data falls into the hole and is saved by his Pinchers of Peril, which is attached through his left sleeve, the real stunt cable behind him is visible. (01:11:15)
Continuity mistake: When Andy plays the final correct chord on the bone keys, the doorway opens and Brand rushes forward with nothing in his hands, as he grabs hold of the door's chain, but next close-up the lantern suddenly appears in his right hand. (01:22:10)
Revealing mistake: When Brand finds the skeleton key in the dirt, he holds it up as Mouth wipes the dirt off the three holes. It's actually quite funny seeing what is supposed to be Mouth's hands in the close-up, with its female manicured fingernails. (00:55:40)
Visible crew/equipment: In the shot of Mama Fratelli waiting outside for Jake in the ORV, you can see the reflection of some film equipment in the small triangle window next to her. (00:01:30)
Continuity mistake: In the beginning scene of the cop calling out the inmates for their lunch, just as he calls "Hey Turkey." you can see the shadow of the supposedly hanged Jake Fratelli on the right wall. The shadow is totally inconsistent with the design of the cell and position Jake was hanging in. (00:00:45)
Continuity mistake: In the scene where the kids are crossing the wooden bridge near the waterfall, Data is seen holding a lantern. After he does his "slick shoes" routine, the lantern has disappeared.
Continuity mistake: At the end when everyone jumps off the gangplank to escape, between three consecutive shots we see Data and Chunk jump off twice.
Continuity mistake: In the scene where they are playing the bone-organ to escape, the Fratellis walk across the beam then climb the rocks to get to the room where the Goonies are. In one of the rocks there is a tall metal post sticking up. A shot shows one Fratelli brother stick his hand on this post to pull himself up, but in the next shot the hand is gone and a moment later the Fratellis emerge from the water.
Visible crew/equipment: At the Lighthouse Lounge, when Chunk opens the door and sees the bullet riddled ORV, Chunk's reflection on the back of the vehicle moves to the right, but there is another moving reflection to his left.
Continuity mistake: When you first see Andy's hands being tied, you can see that they are tied fairly tight. Right before she goes off the plank, you'll see that the rope is barely around one wrist. In the next shot as she is going into the water, you can see her holding her elbows with both her hands. Then when Brand rescues her the rope is secure again. (01:32:40)
Continuity mistake: After Data breaks through the screen door and causes the pile up, the potted plant that was on the table is already lying on the floor in the next shot of Chunk catching the statue, even before it falls and hits the floor. (00:09:00)
Continuity mistake: When the Fratellis leave the County Jail, the first police cruiser which makes the U-turn has a smooth chrome bumper with only a recessed license plate at the center, but when they make the first left turn, that squad car now has a chrome bumper with driving lights at each end and bumper guards on both sides of the license plate. It's funny how when they make the next right turn, the car style actually changes mid-turn, between shots - just before the second police cruiser joins the pursuit. (00:02:25)
Continuity mistake: In the cave, when Francis Fratelli begins to balance himself on the beam, in the close-up when he shouts, "Don't push, Jake," the flashlight is under his left armpit, but next wideshot he holds the flashlight in his right hand. (01:18:00)
Continuity mistake: In the attic, after Chunk breaks the frame, in the overhead shot there is a long piece of glass still attached to the frame, but as Mikey and Chunk kneel to lift the frame, that long piece of glass is gone.
Continuity mistake: When Brand turns on the water in the kitchen sink Mouth is sitting on, in the closeup shot it's a very different sink and faucet. There is even a yellow bottle of detergent that isn't there in the wide shot.
Visible crew/equipment: When Francis and Mama Fratelli carry the bagged corpse to the ORV, in the close-up the reflection of a crewmember, who moves his head, is visible on the surface of the black vehicle.
Revealing mistake: In the scene in the cave where Brand pulls back the rock and the bats fly out, there is a close-up of Mouth with bats flying in front of his face. You can clearly see the wires attached to the bats.
Continuity mistake: When the back of the Fratelli's ORV is riddled with bullet holes, you can see they make a distinctive backwards "L" shape above the Jeep letters. Later, when Chunk examines the ORV, the bullets holes are now in different places than they were before, as well as two more holes in the license plate and the right brake light. Also, the license plate that is on the ORV when it is hit by the bullets, changes design as well. (00:02:45 - 00:30:30)
Answer: He says, "He is a big strong man."