First of all, THANK YOU! To access the bonus content, just double tap and swipe the little mountain on the right side of the screen.
For older Wonster Words versions (pre v3.05):
To add the secret word pack to the list of available word packs, just double tap then swipe ON the “Wonster Words” title on the opening scene.
This will add the Bonus “AD” word pack into the list of word packs available for your child to enjoy:
Please email us at firstname.lastname@example.org if you encounter problems. Thank you!