|Elements||Chain Lift Hill|
|Arrangement:||2 trains with 7 cars per train. Riders are arranged 4 across in a single row for a total of 28 riders per train.|
|Built by:||Bolliger & Mabillard|
|Former names:||Apocalypse ( to )|
|Relocations:||Six Flags Great America as Iron Wolf|
Six Flags America as Firebird
|Capacity:||1,220 riders per hour|
For the 2019 season the Apocalypse was given floorless, sit-down trains and the new Firebird name.