If only I knew more 1992 pop culture trivia! Maybe then I could actually enjoy playing this game.
You can see a picture of my setup here. It's the cannibalized Pinocchio cart. I desoldered the mask rom ic, and replaced it with a socket. The socket has some wires that connect to a ribbon cable, which connects to the DE2 board. The DE2 board maps the on-board SRAM to the rom socket on the cart. The board loads the ROM data from the SD card into the SRAM when it turns on. Then, when you turn on the SNES, it can play the game that was loaded from the SD card.
There's so much stuff I want to add! I think now that I've proven it can work, I'll start working on making a pcb and building a self contained version. Then i can start adding cool features like support for as many games as you can fit on the sd card, special chip emulation, and who knows what else...