Kids' Alien Movie from late 80s/early 90s??!

I don't remember much of the movie, but I believe it was a kids' movie!.!.!. maybe on the Disney channel!? All I remember is a group of aliens crashing on Earth, and they meet up with some kids!. It's Halloween in the movie, and they're able to walk around without looking out of place!. I don't remember the plot of the movie!.!.!. BUT I do remember that one of the aliens was the typical, cool, rebellious teenager type- he wore a leather jacket and sunglasses and kinda sounded like Jack Nicholson!. Anyone have an idea!?!?Www@Enter-QA@Com

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