Hirnschlacht (Brain battle) is the second album by German industrial band Feindflug.

[2] Metal.de rated the album highly, stating that it was a good successor to the previous album Vierte Version, although noting that the samples used were less aggressive.

gave a positive review, though stating the video accompanying Roter Schnee was "really not that great.

"[4] IndustrialReviews.ru and DarkItalia.com also gave positive reviews, both noting the unique style of music.

[5][6] Katja Kauer stated in the book Pop und Männlichkeit that the title of the album suggests that the portrayal of mental knowledge can coexist with the displays of physical masculinity usually seen in industrial music.