Stamps on new figures feet.

[TMNTGal]

Originally Posted by LAXtitan99

Dont think anyone has mentioned it so...

The same numbering system also appears on the new Ninja Action Turtles though not on the foot it is really small on the tail of the turtle when you hold it upside down.

A tattoo on their tails! Ouch!

[JaffleMan]

Bought the toddler turtles pack today and all 4 had numbers on their feet.