Video game: Mamorukun Curse!
Mamorukun Curse!, originally released in Japan in 2009 but finally available internationally on the PlayStation Network, required the player to use recently killed people to fight back against an evil entity, which comes to life in a number of ghastly forms.

G.rev/Gulti
4 stars
Mamorukun Curse!, originally released in Japan in 2009 but finally available internationally on the PlayStation Network, required the player to use recently killed people to fight back against an evil entity, which comes to life in a number of ghastly forms.
You have your traditional shooting abilities, as well as a Curse Shot, which you can use to protect yourself from incoming fire while also slowing down enemies. It takes a bit of time to get used to this ability, but it's quite useful once the bullets start flying.
While the gameplay is slightly repetitive, Mamorukun has enough style to go around. The overly cute visuals may be a little too saccharine-based for some, but they're efficient when it comes to enemy and level design.
The boss battles in particular are noteworthy, because they simply will not give up without a fight.