The EARLY Pippin vs. Ugluk Twin Pack has a distinctive error on the card action feature instructions.

Three versions of this Twin Pack can be found:

Version 1: Early feature printed instruction error “Ugluk sword in both hands”.

Version 2: This error would be corrected with an interim solution of stickers.

Version 3: The stickers would later be replaced with a correctly printed instruction release. This version being the more common of the three will be found with Date Stamps in late 2002.  The example shown has a Date Stamp of XXXX.