Sonic the Hedgehog 2/Casino Night Zone

A city that never sleeps, full of pinball rooms, flashing lights, and slot machines. This zone became the first of many casino/carnival style zones that would eventually be included in future Sonic titles.

Slot machines
The slot machines give out different prizes depending on when the reels land. The possibilities are: Sonic, Tails, Ring, Bar, Jackpot or Robotnik.
 * 3 Jackpots: 100 rings (and an extra life for getting 100 rings)
 * 3 Sonics: 50 rings
 * 3 Tails: 30 rings
 * 3 Robotniks: -100 rings (if you have less then 100 rings then you will lose all the rings you do have, but you don't die)

In addition, a Jackpot or two can also act as a wild card or wild cards, rewarding rings even though the other reel(s) are not Jackpots. One Jackpot and two icons give out the standard prize, but two Jackpots will double the standard prize for the third icon. A Bar will also give out rings depending on how many there are. Note that in this case, Jackpots only act as doublers in the case of only Jackpots and Bars, i.e., two Bars with one Jackpot is worth 40 rings, and one Bar with two Jackpots is worth 80 rings, but one Bar and one Jackpot is only worth 2 rings. The boss Dr. Robotnik traps Sonic within a giant pinball arena and tries to kill him with his neon spike-ball machine.