The Mystery Game 81 was available from December 17th, 2011 until December 26th, 2011. The Icy Winter Holiday Mystery Game cost 
16 cash per dart 
. If the player found all 6 regular items, they were rewarded with a bonus 7th item (the Cookies Store).
| Icy Winter Holiday Theme | ||||||
|---|---|---|---|---|---|---|
 Icy Blue Pegasus (Rare) |
 Frosty Home (Rare) |
 North Pole Tower (Uncommon) |
 Icy Blue Pony (Uncommon) |
 Poinsettia Boar (Common) |
 Elf Pig (Common) |
 Cookies Store (Bonus) |
| |||||