The way the Ratchet & Clank wiki capitalizes words has changed; therefore, this article should be checked, and, if necessary, capitalization should be fixed.
The Jackpot modification was a weapon modification that was useful when Ratchet tried to earn a lot of bolts. Any enemy yielded bolts when was defeated, but the Jackpot mod increased the yield when Ratchet destroyed the enemy with a weapon equipped with the Jackpot modification.
Behind the scenes
In Ratchet: Deadlocked the jackpot mod increased the bolt drop amount from an enemy by 50%.