> For the complete documentation index, see [llms.txt](https://kof-arena.gitbook.io/the-king-of-fighters-arena/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kof-arena.gitbook.io/the-king-of-fighters-arena/gamefi/controller-mint.md).
# Controller Mint
**■ Minting Controller**
* 2 level 5 Controllers can be used as materials to create a new Controller Box.
* At a certain probability, you may be able to obtain 2 Controller Boxes from Minting (Twin Minting).
* Depending on the number of Mints, Twin Minting probability will increase.
* The generated Controller Box’s Grade will be determined by the specs of the Controllers used for Minting.
* Each Controller has a Minting limit and Controllers with no more Minting left cannot be used as materials for Minting.
**■ Minting Cost & Probability**
* FM and Diamonds are used for Mintnig.
* The grade of the Controller Box acquired through Minting is determined by the grade of the Controllers used.
Parent Controller 1
Parent Controller 2
Controller Box (Common)
Controller Box (Uncommon)
Controller Box (Rare)
Common
Common
100%
-
-
Common
Uncommon
50%
49%
1%
Common
Rare
50%
-
50%
Uncommon
Uncommon
-
98%
2%
Uncommon
Rare
-
50%
50%
Rare
Rare
-
-
100%
**■ Twin Minting Probability**
| Controller Grade | Twin Minting Probability |
| :--------------: | :----------------------: |
| Common | 2% |
| Uncommon | 2% |
| Rare | 2% |
● The Twin Minting probability rate is determined by the number of times that you attempt to Mint.
* The success rate of Twin Minting increases by 0.25% each time you attempt to Mint.
* The final probability of Minting: Base 2% + Controller A's increased probability rate + Controller B's increased probability rate.
※ This Guide was written based on the test environment and may be subject to change in the future.