Here's my little experience with testing the ride! (copied from another post)
Ooh! I went on the Mummy ride the last day we were there, which would be this past thursday(the 15th of April). It was me(16 years) my two bros and their friend(all 13) and we had just gone through the carni games and won things there(go fuzzy hats! ) As we walked up, there was a big stream of people, and lots of yelling and such, and we found out that the ride had just reopened for the day. A guy with a bull horn was calling out the things you mention, everything must be stowed in a locker, yadda yadda. We all got in line, sans fuzzy hats and other stuff we won.
The time outside is way way wrong. If it says like 10-20 min line wait, it is tons longer. Even though we were close to the front, it took about 20 mins to get even close. Then, the ride had dificulties, as of which they didn't know how long it would be, but because the line for it yesterday was 90mins, we decided to take our chances, and the line was moving up from all the people leaving every min. or so. That went on for about 25 mins, until they said we all had to leave, as it would be lots longer.
We came back later that night, because I was determined to ride it before lots of others, and it was my last day, and it was open. We waited for about 45mins(even though it said 20) to get on. The CM do a good job with their little acting bits, and the ride is really worth it. It's really cool, and not as bad as a roller coaster as i was afraid it would be. Like a more adult Space Mountain. The seats are a little small though, as the lady in front of my row had a trick getting in(not to be mean, but it's the truth) and if you don't like the fire or your kids are afraid of it(like at the Jaws ride, like my bros were when they were little) I would suggest keeping them in the middle or the cart, as it does get hot.
I loved the ride, and thought they did a really good job! I even got a t-shirt from it!