Happy 21 SCREAM! Wow! It has been 21 years since SCREAM opened at Six Flags Magic Mountain... dubbed the "Parking Lot Coaster!" 🚙 🚐 🚗 🛻 Scream is manufactured by Bolliger & Mabillard, the Floorless Coaster model was the park's sixteenth roller coaster and is located in the Screampunk District. Scream operates 3 floorless trains, stands 150 feet tall with a top speed of 63 mph; features seven inversions including a 128-foot-tall vertical loop, a 96-foot-tall dive loop, a zero-g roll, a 78-foo