How to speed up the Collapsed Star Dome Railway at twice the speed? Travel through the stars and discover your destiny! "Collapse Sky Railway" invites you to take a fantasy train, explore the vast universe, and experience the dual charm of profound plot and strategic combat. We bring you a tutorial to start the battle on the Collapsed Star Dome Railroad at double speed.
1. Completing The Shadow Never Left and related guidance tasks will unlock twice the speed.
2. Then find and click the fast forward icon in the upper right corner of the battle page.
3. This will enable double combat speed.
The above is the entire content of the tutorial for starting combat at double speed in "Honkai Impact: Star Rail". For more game strategies, please click the source code website.