The Mouse And The Motorcycle (1986)
"I remember the book really fondly though. I remember some kid asking the mouse how he makes the motorcycle go, and the mouse tells him he just makes motorcycle noises and it works. Kid me was like "oh of course, that makes sense" but looking back that's hilarious."
Rik Mayall was a legend.
I also found out there are deleted scenes, including one were the Horned King's undead army murders his henchmen in a very disturbing and frightful way. The movie's a lot darker than any Disney film I know of.