Loading... Please wait...Hey what’s that thing on top of your Nintendo 64? Its where the Nintendo Jumper Pack or Expansion Pack goes. You’ll need either one of those to fire up your N64, without you’ll be staring into the black abyss. While the Memory Expansion Cover won’t prevent the black abyss, it will make your system more aesthetically pleasing. It also prevents Dorito dust and dirt from getting in your N64, so it’s got that going for it.