Why are some Nintendo Vs. games even called "Vs." ?

[blkdog7]

Wasn't there the original Vs. cabinets were you could actually play against someone. Like whoever got the most points or something in a 1 player game like say Castlevania. I though the two sides somehow linked with each other.

http://www.gamingsanctuary.com/NinVSSYS.jpg

I need to buy a C3-PO jacket. NOW.

 

[Phetishboy]

I swear I've seen that happy bastard on the left before:

OMG, here he is, 3rd guy from the right: