You made an actual NES game for LD? Fantastic! I've been thinking about trying to make a NES game myself, and in fact it was your post on nesdev that lead me here rather than the ldjam website. I'll have to take a look at your starter kit sometime.
As for the game itself, it was enjoyable. The dialogue enhances the mood, and just having it puts the game a cut above many others, in my opinion. Like others have said, it's easy to get caught on other characters. I'd like it more if Barney's and enemies' collision boxes were actually a little smaller than their sprites, to make fitting through narrow corridors (and slipping past enemies) easier. But there are a lot of jam entries that don't bother to knock back or give the player temporary invincibility, so I really appreciate that in this game.
There are also a couple of places where it is possible to walk off the edge of the screen, but once scrolled onto the next screen there is no more ground (or lilypads, as the case may be) to walk on, so Barney is stuck until the darkness reaches him.