Bruce transfers Boulder Hill into defense mode, but in the wide angle when the steam is released it is back in it's normal gas station configuration.
When the Boulder Hill petrol pumps are in laser gun mode, the one on the left disappears for a few frames.
When Buddy, behind the wheel of Firecracker, says "Just what I'm thinking, Mrs. Simpson" at the bottom of the screen the edge of the animation cell is visible.
Vanessa is startled by electricity from the Boulder Hill petrol pump guns. For a few frames, the open space between her mask is colored in with a light Grey.