During the opening and closing credits, you can hear the main theme from Dennis (1993), composed by Jerry Goldsmith.
Toward the end of the film, just after the "angel" vanishes from the chimney top, a "birds eye" view of Dennis' town is shown. It is the same scene used as "Kingston Falls" in Gremlins - Kleine Monster (1984).
This is the first time in the franchise Dennis doesn't wear his trademark striped shirt and overalls.