Most levels have bonus objectives such as collecting a briefcase or finishing the level without killing anyone, completing these will reward the player with stars. Stars are used to unlock the next chapter of levels.[6] The game launched with five different chapters,[2] one of which was inspired by a level from Hitman: Blood Money.[6] Post-launch, two additional chapters were added, one based upon a level from Hitman 2: Silent Assassin.[8][9] The game features in-app purchases which provide hints to the puzzles or unlock level chapters immediately.[1][8]