The Sweet Spot is an area of vulnerbility on the body that Riddick and Kyra favored in killing their prey.
It can be defined as: "Left of the spine, fourth lumbar down, the abdominal aorta."
In the SeriesEdit
Riddick first mentions the Sweet Spot when talking to Carolyn Fry in Pitch Black after being blamed for the murder of Zeke.
Kyra then mentions the Sweet Spot in The Chronicles of Riddick in Crematoria in an humorous, allusionary manner to Riddick as she held a shiv to the spot.