EX The Sewers (EX地下水路) is a Score Attack exclusive mission in Azure Striker Gunvolt 2. It was originally released for the 3DS version as part of the first DLC mission pack Merak & Carrera alongside EX Data Facility, and has since been included in the console Striker Packs and Steam release by default. It is a shorter, heavily altered version of The Sewers from the main game modified to be much harder, with Merak from Azure Striker Gunvolt as the boss, also with modified attacks.