In Williams Pinball, you can earn various currencies to upgrade and unlock tables and customization items.

Tickets: 

Tickets can be earned by watching ads, completing challenges, leveling up, or they can be exchanged for Zen Coins. Tickets are used when promoting a pinball table to a higher grade, to refresh the Daily Challenges, and to participate in League Play on the Google Play version of the game.

Zen Coins: 

Zen Coins can be earned by leveling up or completing challenges. You can also purchase Zen Coins in the In-game Store if you choose.

Table Parts: 

You can earn Table Parts by playing the Daily Challenges. Table parts are used when promoting a pinball table to a higher grade.