As a teaser for Las Vegas in Mafia Wars, Zynga gives us a limited time event in Mafia Wars. It’s composed of three Jimmy Vegas jobs and a new Slots Collection.

You can choose from the three Whack the Rat Jimmy Vegas jobs. These are:

Hack into Hotel Records (5 minutes cool time) – This requires 30 Energy and rewards 45 XP and 1 percent job mastery. You get a bonus 15 XP and a twenty percent chance to get a rare Whack the Rat Jimmy Vegas collectible or an event item.

Bribe a Guard for Root Access (8 hours cool time) – This requires 60 Energy and rewards 120 XP and 12 percent job mastery. You also receive 30 XP and a 50 percent chance to get a rare Whack the Rat Jimmy Vegas collectible or an event item.

Position a Sniper (24 hours cool time) – This requires 100 Energy and rewards 250 XP and twenty percent job mastery. You also earn 50 XP and a 100 percent chance to get a rare Whack the Rat Jimmy Vegas collectible or an event item.

Once you’ve mastered the Whack the Jimmy Vegas job, you’ll receive a Jimmy’s 220 Sunset. You have until July 16 to complete this event.