Okay, so as per a request from
@spacemt354, here are some updates that I would add to the overall concept:
The ride vehicles would now merge the carriage with my jalopy idea. It will look like the Mr. Toad jalopies at WDW, in the last few years of that ride's existence. Imagine this...
...merged with this:
Here are the scenes for the ride, as typed up by
@spacemt354. My additions, wherever they may be, will be
bolded:
Scene 1 - Introduction to Mickey and his pals.
He greets the guests and sends you on your way through the Fun House entrance.
He pulls on a set of whistles (a homage to "Steamboat Willie"), signaling the ride to begin.
Scene 2 - The Mirror Maze.
Your vehicles meander around odd shaped mirrors as 2.5D projections (tech used in Mickey/Minnie's Runaway Railway) adapts the surroundings to different shaped mirrors and settings as you circle around.
Within the mirrors are various giant objects come to life (homage to "Thru the Mirror"), such as giant playing cards, a spinning globe, and dancing gloves and hat, plus some giant sentient musical instruments (a la "Music Land", a Silly Symphony cartoon).
Scene 3 - A Loose Seal!
Donald, performing a stunt with 3 seals (homage to Mickey's Circus), a young pup on some horns and two others in a tank of water, accidentally lets them loose and they crash into a barricade, sending your carriage spinning into the next room.
Scene 4 - A Goofy 'Movie'
You crash into a projection room within the Fun House that is responsible for the special effects throughout the shows. From your crash into the projection room, Goofy, in charge of the special effects, accidentally sets off fireworks and
a wind machine that kicks things up into a whirlwind (a homage to "The Band Concert") in the room and you're dazzled and dodging pyrotechnics and wind is blowing in your face as your carriage careens backwards out of the projection room.
Scene 5 - Pete's Surprised Reaction
As the seals break loose, fireworks continue to go off,
wind is blowing around, and your vehicle is careening backwards. Pete grabs a hold of Mickey and tells him that he's finished for all this damage he has caused to the Fun House he owns. Soon you hear the bellow of the seals as they pop in and surprise Pete.
Scene 6 - Midway Madness
While Minnie and Pluto where in charge of the midway games portion of the Fun House, Goofy and Donald's previous mishaps have caused the effects in the Midway section to go crazy, with pop out figures coming out of the walls, moving targets spinning out of control, puffs of air coming from above and below ground, all while your vehicle attempts to make it back to the entrance of the 'Fun' House.
Scene 7 - Mickey's Finest Hour
Approaching the finale, Mickey races ahead along with the other fab five members, as they are being chased by Pete and the seals,
and a wave of water from the tank (with Goofy attempting to surf it, as in "Hawaiian Holiday"), and closes off the remained of the Fun House from the guests. In a loud bang of a finale, the carriages regain control, and Mickey breathes a sign of relief.
Scene 8 - Unload
Ragtime jazz circus music
(sounding like the music heard in "Thru the Mirror") begins to play as you approach the exit to the Fun House. You reappear near the load area, disembark and head back through the main queue building structure and to the Big Top Souvenir. However, on the exit path over to the gift shop, there's a meet and greet with circus Mickey and Minnie, held over from the old Pete's Silly Sideshow M&G attraction.
Those are the updates I was able to do on short notice.