Join Erika Hoshinara in her investigation of a virus outbreak inside a big corporation. Explore 4 different areas each with unique enemies, bosses and puzzles to solve. Blast through enemies with different weapons and tactically manage your ammo and medkits. Collect differents weapon upgrades and get to the bottom of this outbreak in this 2D action game. Play through the campaign with 2 difficulty modes or through the ever randomized Sweep and Clear game mode for endless replayability.