Castle.of.shikigami.2-darksiders.rar File

: Holding the shoot button activates a slower, more powerful secondary attack.

The file you mentioned is an archive likely from the release group. To install it: Castle.Of.Shikigami.2-DARKSiDERS.rar

: This is the game's core scoring and power-up mechanic. By "grazing" (staying extremely close to) enemy bullets, your shot power increases and you gain a score multiplier of up to 8x . : Holding the shoot button activates a slower,