NES library was special because it was a mix of lot of genres and a revolution in gaming. A lot of great gems : NINJA gaiden , Chip n dale , Ducktales , Darkwing duck , COntra , tank , jackal , gradius , metal storm, Castlevania , ghost busters, bucky o hare , Shatterhand , Projec vice doom to name a few
NES library was vast and is still is a goldmine..sadly we got only shitty pirate multicarts with repeated limited games here for the most part..thanks to emulation the games live on