Blind pack toys seem fall into two categories, those with some sort of indication to whats inside and those that have identical packaging regardless of the contents.
Luckily the boxed Minecraft mini-figures fall into the former.
On the bottom of the box above the barcode a code is embossed into the box itself, the letter this ends in is the key to whats inside.
At first we thought the codes were simply in order, i.e. A for the first, B for the second but as you can see this isn’t the case.
I hope this helps you find what you want!