I'm not sure how you can say that when there is literally nothing to do in it.
It was a demo release for a port of Graal the Adventure
for the Gameboy Color, as it was extremely easy to make homebrew/pirated copies of games for the Gameboy/Gameboy Color console. It was never fully realized or completed; though there are a few in-development screenshots. Last updated: October 30,1999
Here are some things you won't find in the demo; very old, small screenshots.
Player's Home (inside)
Misc. Room with NPCs
Shop (showing the rupee/gelat/gralat system)