killer7 is an action-adventure game that returns over 13 years after its initial release. Players control Harman Smith, an assassin who manifests seven distinct personalities, each equipped with unique abilities and weapons. The objective is to hunt down the sinister Kun Lan and his "Heaven Smile" organization to prevent their plan for world dominance. The game features a hybrid first and third-person shooting mechanic and is optimized for PC with a cel-shaded visual style.The game's core mechanic allows players to switch between Harman's seven personalities at will to overcome specific combat encounters and puzzles. Each personality possesses a unique appearance, weapon, and special ability, such as Garcian's telegnosis, Dan's magnum, or Mask de Smith's grenade launchers. The narrative centers on Harman's quest against the Heaven Smile organization, a group of suicide bombers. killer7 is known for its dark themes, complex story, and striking cel-shaded graphics, cementing Grasshopper Manufacture's international recognition.