need help making a cartridge selector for SNES!~

[macabre]

Hi! I'm building an arcade box with a few games built in, around the bomberman series. Seven (7!) of these games are on the snes, and my first idea was to use seven snes mini consoles, but then I found this;

http://cgi.ebay.com/Super-Nintendo-NEW-62-pin-connector-repair-your-SNES-/170553153263?pt=Video_Games&hash=item27b5c296ef

And was trying to figure out what the individual pins were from here;

http://www.caitsith2.net/snes/flashcart/cart-chip-pinouts.html#cart



My idea was to see if there was any sort of voltage pin that I could abuse as an On/Off switch, and tie all seven of my cartridges to one system.

Is this possible to do?

I'm not as skilled as I probably should be to be attempting this, but I'm rather particular and feel that I might be able to pull it off.

Thanks in advance for any help!

[macabre]

I don't mean to spam, but I would love to know if this is a possible idea.

I can see that when facing the cartridge, pin #5 is a ground, and am assuming that Vcc stands for the voltage pin at #27.

Will the cpu clock pin need to be worked with?

Is it even possible to make a multi-cartridge reader/switch for the snes with this idea?