Significantly more expansive than the original, in both good and bad ways. The addition of the cavern dungeons changes up gameplay significantly, as does a much greater focus on boss enemies. Playing through without trying to 100% is a lot of fun, and the money-making mechanics give a delightful 'number go up' feeling, but trying to beat the game 100% is a real slog. Also, the water wraith probably gave a generation of children trauma.