From 1978, here is the version, which most people don't have in their Hulk or yo-yo collection. This version shows a larger image of Hulk on one side. The writing is larger and the case is made of hard plastic, not soft plastic.
The yo-yo is mint, and still has the original shipping tape on the bottom of the box. Notice that part of the hanging tab is still in the bottom of the box. Getting good pictures of this yo-yo were difficult. If you would some different views, just ask.
If you collect yo-yos, or Hulk items, or maybe you just like a big angry green guy, ya gotta have one of these in your collection!