How many roller coasters does this park have ?

"With 19 roller coasters, Six Flags Magic Mountain holds the world record for most roller coasters in an amusement park."

Yes, get the app. It will even give you wait times for each ride

They have tatsu, ninja, X2, apocalypse, green lantern, twisted colossus, scream, batman, goliath, new revolution, viper, and full throttle. These are what I can remember off the top of my head. Here's a list of all the rides, which includes more than just the bigger roller coasters: https://www.sixflags.com/magicmountain/attractions/ride-list

Two theme parks. One needs a swim suit the other one doesnt. There is an application on play store under the name "Six Flags". All the details of all the rides are there. Maybe more than 30 rides