This is detailed play by play of the ride for those saying reviews are vague. Spoliers.
Timestamps from this video (old ride) may help explain the segments I am referring too (apologies for linking a video source, it is not mine it is from theme park review)
Queue and loading station are exactly the same. So out of the load, the sliding doors we are used too were not working, just stuck in the fully open position. Turning the corner physical Scooby is gone (0:24), but you're greeted by familiar suits of armour on either side of the track as physical pieces, however, on my ride, this scene was very dark. At the end of the first straight, there is a large blank wall the lights up when you approach it showing the monsters from the first Scooby film (0:34). Most of the next section is very much the same as the video with rebuilt physical scenes and props, and the axes are still present for the photo section. Next new addition is at the (1:02) mark of the video where instead of the mirror, projection mapping and a camera is used to display your car and faces on the wall, where a monster jumps out from behind the car, this is very cringe and poorly animated, even pixelated, the mirror would have been a better scene. Next going into the lift there is new props on the left and right of the track, green tiki heads from memory with some lights on them. Once in the lift, you notice it is completely covered in TV screens, which once both cars are loaded, show scrappy doo in his tiny form. Then once the lift starts moving up Scrappy transforms into his large muscle scrappy form from the movie and moves around the screens. The train rolls back into the drop and onto the rotating platform (1:55), this platform is now enclosed with a box just around it, inside are lasers and lights and a VERY loud noise effect. The next portion of the ride is pretty lackluster, the red strips from the walls are gone, there are very few lasers or effects in the room generally. The spider is still in place and there is now what seems the be the big cauldron from the movie, sitting on the ground in the middle of the room. On the two drops in the laser room, there is added light and sound triggers at the bottom of the drops, but nothing too special. After the laser room, you go into the previously last scene at (3:10), this room is pretty much one big screen with monsters on either side and the large disco ball from the movie that is used to shine light onto the monsters destroying them. The timing was a bit off on these when I rode, so you didn't actually get to see the monsters blow up but maybe that will be fixed (again this animation is pretty poor and seems rushed). There is now a new last scene as physical sets and a small screen has been added at (3:22), the whole left wall has tiki heads and lights on it, and at the end of the straight there is a screen that says tiki lounge I believe, and a voiceover says thank you for riding.
Now I might be mistaken here, but I actually don't recall seeing an animatronic or animated version of Scooby Doo anywhere on this ride, which is pretty disappointing, but considering how poor the animation on the monsters is, they for sure would have butchered Scooby if they had tried.
As I mentioned in a previous comment, it is definitely an upgrade from the dark empty space its been for what 2 years now? And obviously it needed fixing due to new regulations, but I can't help but feel it was rushed, and more time spent (mainly on the animation) could have made this a great refurb. However, the fact they retain a lot of original physical scenes and props is great and still feels a lot like the OG Scooby with a few new cool pieces as well. I also like that its kept with the story from the film even more so than OG Scooby did with the same monsters, and the Scrappy Doo feature, but I cant help but feel like kids these days would not have seen the Scooby movie from 2000 and might not get the story like we would? It's no Disney level dark ride, but definitely still worth a ride or two.