Just not as good as 1 or 2. The Japanese version is really easy until the literal last screens of the game (where it's still very manageable), and the American version would actually be better were it not for the limited continues. Still probably one of the NES' best platformers due to the level of polish here, and the game is impressive visually and mechanically. The level design didn't really leave much of an impact (though it's not bad at all), and the music was... there. 1 and 2 are simply far more memorable and satisfying games.