I recently found a bargain copy of Kirby's Fun Pak (Super Star for the ntsc crowd). Got it, cleaned it, and started it up. But the lower part of the screen shows a lot of graphic artifacts; small lines when kirby shoots and almost NES like distortions when enemies enter from the screen below.
I have never seen anything like this on the SNES, if the games are dirty - they just don't start up properly. My question is if this is something that has to do with the SA-1 chip, if it's a common problem with Kirby super star / Kirby's fun pak or if it's my copy that's faulty?