Tangent: I'm sure we discussed this before, but I hate the poorly drawn bird in JJ & Jeff. In the game, nearly all the sprites look decent, but then there is this sloppy bird (the stalactites aren't too pretty either). YES, I clearly have an issue with birds in video games, because I had the same problem with the eagle / hawk in Legendary Axe. Legendary Axe's winged creature was more of an abomination than the avian sprite in JJ & J, but they're both horrible.
Yes I hate that damn bird too! Some of the sprites in the game look really nice, but that bird is terrible just like in Legendary Axe. Speaking of which though, one thing I wish J.J. and Jeff had was more enemies and background graphics because they repeat a lot.
Yes, the backgrounds in JJ & Jeff suck. They are too flat, sparse and repetitive. If they had worked on just ONE aspect (i.e. more variety), then it would have helped the game immensely. The last time all of use got into a good discussion about JJ & Jeff, folks pointed out the lame backgrounds and I agreed. Even back in the day, when the game was first released, I was disappointed that a little more love hadn't gone into this aspect of the game.
Most games would benefit from a larger cast of enemies, and I agree that JJ & Jeff is among them. There should have been more substantial foes, or even, Gasp! "mini-bosses". Simply increasing the cast of insignificant things (like, say, tiny flies, ice cream cones, aphids and flutes) would be nice, but not sufficient.
I still don't understand how that ugly-ass bird passed the quality check at Hudson. Is that hideous feathered beast in Kato & Ken?