I remember playing this game with my dad as a child. Thanks for bringing back happy memories. Nostalgia gives me crippling depression, but I can't help but look back with a smile on my face.
The arcade version is fun, but a shameless quarter-muncher like someone else in the thread said. A unique take on an interesting concept like Clu-Clu Land, and it has some fun items and cool bonus rounds. The NES version is a bit cut down, but still a good game to play.
All of that aside, the game didn't age very well at all. It's sad, too, because it was a fun game.