This is a HD remake of stage 2, stage 5 and stage 6 boss of Touhou Shining Shooting Star.
It includes 2 characters (Marisa and Sanae) and 4 difficulty levels.

You can use Beril to challenge these stages of Touhou Shining Shooting Star.
When playing Beril, the control is based on the mouse.
When playing Marisa or Sanae, the control is based on the keyboard as usual.

(You need to clear section 1 first in Beril's main story mode.)

Touhou Shining Shooting Star Crossover Pack (paid DLC) is released, and you can access it from the crossover area.
When you have Touhou Shining Shooting Star Pack, Beril's skill points will increase by 2 permanently.

Tips:
For better control and feel, you can switch to exclusive fullscreen mode from settings.
To make AI attribute adjustment easier, you can increase game speed by pressing the "]" key.