I love collecting Lego Minifigures but the problem is they are sold in mystery bags so you never know which character you are going to get. There are sixteen collectable figures in each series and we are up to Series 12 now and one way people try and work out which figure is in the mystery bag is by using bump or dot codes. These codes are tiny little bumps located on the bottom strip of each packet. Each figure has it's own bump or dot code and so in theory you can use these to try and work out which one is inside.
I have tried using the bump code method before and found it to be very hit and miss. The bump codes usually show up online soon after the figures go on sale and then you can try and match them up when you go to buy the Lego Minifigures. From me own personal experience though, trying to read bump codes in a shop is almost impossible. I tend to prefer the feel technique all this does not always work. So now that Series 12 of the Lego Minifigures has just come out will I be trying to use these bump codes, probably not!