Schaper Toys was one of those companies that eventually was swallowed up by its bigger competitors, or, at the very least, sold some of their products to those bigger companies.
Best known for Cootie, which ultimately became the company's mascot, Schaper came up with some imaginative, if also repetitive games for the kiddo's beginning in the late 60's and into the 70's. One of those games was the Billy Goat game, which was introduced in 1973. Check out this commercial:
The idea is to build the wall in a certain amount of time before the goat comes along and breaks it. The basic concept is similar to some of Schaper's other games (i.e. Don't Break The Ice). Milton Bradley (now part of Hasbro) borrowed the idea, if you will, when they introduced Jenga a few years later, the variation being that you had to avoid the bricks collapsing at the wrong time.
What kind of a bug is a cootie, anyway?