First aired: 1987
I was informed of this episode of Duck Tales by Alex and found it online, at Daily Motion, though it is available on DVD.
It is, of course, a Disney series featuring Scrooge McDuck (Alan Young) and his Grand-nephews Huey, Dewey and Louie (all voiced by Russi Taylor).The premise being that the nephews have been left wqith Scrooge after their uncle Donald joins the navy. Scrooge is the richest duck in the world but is always trying to find ways of becoming richer.
|Wolf hires the convention centre|
|the creature, Drake-ula and the Mummy|
|I only bite... apples|
The imdb page is here.