The Mystery Game 231 was available on December 20, 2013. The Mystery Game cost 
15 cash per dart 
.
| Theme | ||||||
|---|---|---|---|---|---|---|
 Black Cupid Cat |
 Camellia Unicorn |
 Tibetan Blue Bear |
 Black Tennessee Horse |
 New Wave Cow |
 Flower Dog | |
| Re-release | Re-release | Re-release | Re-release | Re-release | Re-release | |
| |||||