| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Six Flags Discovery Kingdom - Roller coasters |  |  |  |  |
| 3 | Name | Manufacturer | Opened | Model name | Location |
| 4 | Batman: The Ride | S&S Worldwide | 2019 (Under construction) | 4-D Free Spin | DC Universe |
| 5 | Boomerang: Coast to Coaster | Vekoma | 1998 | Boomerang | Sky |
| 6 | Kong | Vekoma | 1998 | SLC (689m Standard) | Sky |
| 7 | Medusa | Bolliger & Mabillard | 2000 | Floorless Coaster | Sky |
| 8 | The Flash: Vertical Velocity | Intamin | 2001 | Twisted Impulse Coaster | DC Universe |
| 9 | Cobra | Zierer | 2000 | Tivoli - Large | Sky |
| 10 | Roadrunner Express | Zamperla | 1999 | Family Gravity Coaster 80STD | Looney Tunes Seaport |
| 11 | Superman: Ultimate Flight | Premier Rides | 2012 | Sky Rocket II | DC Universe |
| 12 | The Joker | Rocky Mountain Construction | 2016 | I-Box - Custom | DC Universe |
| 13 | Harley Quinn Crazy Coaster | Skyline Attractions | 2018 | Skywarp | DC Universe |

Question: How many roller coasters were opened at Six Flags Discovery Kingdom in 1998, and what are their names?
Answer: Six Flags Discovery Kingdom has two roller coasters that were opened in 1998: Kong and Boomerang: Coast to Coaster.