"The player goes on a journey with an archaeologist. In the midst of their journey they discover a stone called the God Slate (the item). The God Slate is a very rare and famous stone among archaeologists, so the archaeologist travelling with the player jumps with joy and says "Wow ! I found it! This is one hell of a stone and I'm the one who found it !" The archaeologist goes nuts over a piece of stone...
That's it. What? You expected more? I did too. But that's all and the fact is the God Slate is simply an item you obtain along the road in MR2 and it has no power whatsoever to unlock anything. It's simply a stone that an archaeologist in MR2 admires and would die for. "