[quote name='CGH']I have a large collection SNES games I tried Super Mario RPG and Yoshi's Island and they all worked fine. I took a flashlight and took a closer look at the contacts and compared them to my other carts some of the contacts on Kirby's Dream Land 3 seem to be broken off a little. The copper parts some seem to be broken in half others seem to be missing the tops. The contacts on my other carts are complete. Could this be the problem?[/QUOTE]
It's possible, but I've gotten carts missing half their contacts to run before.
Find another SNES to try the cart in- more than one, if possible.
My sister briefly owned an SNES that didn't run Super Mario World, but did play a Madden game she had. She exchanged the cart, but it still didn't work. She took the system and both carts back to Gamestop, where they messed around with things- turns out this particular SNES would not play any copy of Super Mario World. The Marios worked in other systems, any other game played in the SNES... but put in Mario World and you get nothing. (She exchanged the system.)
So, maybe your system's just being weird.