Got a story here. I played Genesis Pit Fighter over to a friend's house and loved it. A couple weeks later I see the SNES version in a store for about $30-40 brand new and proceed to pay full price for it.
Boy, didn't I feel like an asshole. That version IS terrible.
The most awful SNES game that I actually enjoyed playing was Beethoven, but mostly because I enjoyed the first 2 movies.
The next worse game was Monday Night Football (Data East), in which your forward progress during a play doesn't count.
So what?
Well each time you get tackled, your man goes flying back 5 yards. Meaning you can actually earn a first down, only to have it taken away because Monday Night Football on SNES gives you credit for yardage based on where you end up after the play is over instead of how far you actually progress beforehand.