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Arcade Rock trinket
Arcade Rock is a trinket in Fiend Folio, a mod for The Binding of Isaac.
Description
Machines have a chance to refund money spent on use.
The chance for a refund starts at 25% with 0 luck, and is increased by 2.5% for each point of luck.
Only the following machines can refund money:
• 
Slot Machine
• 
Fortune Telling Machine
• 
Donation Machine
• 
Shop Restock Machine
• 
Greed Donation Machine
• 
Crane Game
• 
Mining Machine
• 
Robot Teller
Special synergies
The following special synergies and interactions for Arcade Rock have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Trinket multipliers | The base chance is boosted up to 35%. |
* Note that not all possible synergies and interactions are listed here.
External links
- Check out the trinket description on the mod's external Wiki.
- Download Fiend Folio from the Steam Workshop.
Sapphic Sapphire 
Blood Diamond 
Scented Rock 
Tinted Heart 
Rose Quartz 
Hailstone