I am also impressed that we still have the box and all the pieces!!!
When you open the box you have a stack of cards and rubber bugs.
The bugs come in five different colors and types. As you can see the sorting possibilities are endless.
This is an example of the beginner cards. Younger children (toddlers) can practice matching one bug per square to match colors.
The cards get progressively more advanced.
Yet another example of the different types of cards.
This will be a game I carefully put away in hopes to pull out for my grand kids, someday. I am not sure if Discovery Toys still carry Busy Bugs, but you could always use other objects and cards for the same idea.