The stories of Spider-Man Noir, an old-timey detective voiced by Nicholas Cage, and Peni Parker, a cute anime girl voiced by Kimiko Glenn with a high-tech robot as a best friend, were introduced, but not given enough screen time for audiences to really get to know them.
Spider-Man: Into the Spider-Verse focused mainly on Miles Morales being mentored by Peter B. Parker, while also introducing other Spider-heroes such as Spider-Gwen, Spider-Man Noir, Peni Parker and Spider-Ham.