It's a good port! You'll probably want a controller for it.
This was by far and away Yuji Naka's best game. It's an early illustration of how games can be art. How through level design and gameplay you could create a cohesive story with virtually no narrative. Armed only with metaphors and imagery you could create a story in a way that no other art form could allow.
In my 15 years owning NiGHTS on Saturn; I never realized any of this. It was only when I repurchased this game recently that I started seeing how brilliant the story is. I won't ruin the imagery and how I see the ways it relates to the overall theme. I will say however that it's a timeless coming of age story. Each and every piece of scenery is a metaphor for growing up. One can quite literally relive different phases of their childhood through this imagery.
When I say every piece of scenery, art, gameplay, and level design. I mean it quite literally. It was all designed metaphorically to relate to the process of maturing into an adult. You could write a book about how the art can be interpreted alone.
Not only this, but it's so simple anyone can complete the game. Yet so complex you'll never be able to truly master the tracks. If you're a Sonic fan and want a sense of speed. This game gave it to you like no other. By taking away the platforming elements. The developers could focus the gameplay on acrobatic moves and highscoring through high speeds with few obstacles to slow you down.
The dynamic or evolving music engine was also quite novel and innovative. As you either nurtured the nightopians and bread them with the nightmarens. Or destroyed the nightopians and mepians the music would change. Allowing the music to stay fresh and familiar, but never truly repetitive. Being able to interact with the nightopians in such a unique fashion really gave some players a bond with the world of NiGHTS.