The gang begins their battles in the mysterious Shadow Area, with the promise that if they can defeat the Seven Shadows, all will be revealed.
An experimental facility? 
Experimenting for what?
مُنشأة تجارُب؟ تجارُب ماذا؟
Eine experimentelle Einrichtung? Aber wofür?
¿Instalaciones experimentales?
¿Instalaciones experimentales?
Une structure expérimentale ?
Pour quoi faire ?
Una struttura sperimentale?
Instalações experimentais?
Экспериментальный?