Hogan's Alley was one of Nintendo's first light-gun games which used the NES Zapper. While most gamers fondly remember Duck Hunt, Hogan's Alley was a bit more like it's tougher cousin.
The game was a bit of simulation of what a police officer shooting course would be like. Areas filled with card-board bad guys and good guys. My favorite as a kid was shoot the can.
But it's been ages since I played mine, and most of my memories are very blurry. I wish Nintendo would relase the game on Virtual Console or something but since the system lacks a light-gun (the Wii-Mote Pointer isn't the same thing I'm afraid) I don't think I'll be counting on it.