The Roller Coaster is indoor/outdoor at the New York New York, and has enough twists and turns to really make it interesting! It is pricey for just one ride at $14 per person, but it's a cool Las Vegas novelty that's worth the trip.
Honestly I gave it three stars b/c I think it should be in the $10 price range for just one ride, but oh well! It's still a great roller coaster!
Cheers!