do they have a restrooms, water fountains, fastfoods, restaurants, toy store, ice cream store, playplace, snack and sodas machine, and stage theaters there ?

Yes the 6 flags theam park has all of those things.

Yes they have all of that there just be careful if you purchase season passes that includes parking the computers screw up often on the parking side I had passed that included parking and actually had to pay for parking and the staff in the boxes don't know how to fix this without a senior employee

Yes they do?