Superbucks are used to instantly finish production, to purchase certain items and to skip unwanted parts of the quests. There are a few ways you can acquire them:

1. You get superbucks for each level you reach.
2. You can get free superbucks as a 5th day bonus, if you log into the game for 5 days in a row.
3. Certain buildings, for example Houses of Luck and Mayor's Residence, produce superbucks.
4. You can win superbucks as Bingo and Wheel of Fortune prizes.
5. You get superbucks for completing a sticker page in your City Journal.
6. You can purchase superbucks directly from the game for real money by tapping the "+" button in the top right corner of your screen.