Harry Potter und der Stein der Weisen ("Harry Potter and the Philosopher's Stone" in German) is an unlicensed game for the Genesis made sometime after the movie Harry Potter and the Philosopher's Stone was released. An alternate version of the game was released titled Pokémon II.

The game plays somewhat like a 3D Pac-Man clone, with a total of three isometric levels to play through. The levels take place in Hogwarts, the Forbidden Forest and an Arabian area resembling Agrabah more than any setting in Harry Potter. The player controls Harry Potter, who has to collect dots which move around the map while avoiding any enemies. The player can teleport if they walk off the edge of the map to another edge of it, which is decided at random. After beating the third level the player is sent back to the title screen, and it is unknown whether or not this is intended.

The music and sound effects are all done in PCM format, and are somewhat good quality for a Genesis game. The graphics appear to be pre-rendered of some sort, although there seem to be some tiling issues with the level layouts.