Gli svedesi hanno diffuso online la versione acustica di Adrenaline e dichiarano:
"At the very tail end of the "MANIFEST" sessions, we were looking into the traditional bonus tracks and wanted to do something special for these ones. "Adrenaline" already had a slightly latin sounding C-part, and after breaking out the classical guitar and a glass of Rioja, the flamenco vibes were filling the studio. The result is "Adrenalina", and it might very well be our own favourite bonus track we have done so far! Enjoy!"