Year 9 Ponies refer to My Little Pony versions that were released in the ninth year of G1 production, which was 1990-1991.
New variations for Year 9 include Baby Ballerina Ponies, Baby Rainbow Ponies, Glow 'n Show Ponies, Precious Pocket Ponies, Pretty Ponies, Rockin' Beat Ponies, Secret Surprise Ponies, and Teeny Tiny Ponies.
The Li'l Litters and Nursery Families were also a new addition, these were families of non-pony pets that included variations of My Little Bunny, My Little Kitty, and My Little Puppy.
Firefly also returned to the line in Year 9, this type with a darker hair and body color, a different pose, and a VHS movie called Firefly's Adventure. A third set of Princess Ponies was also released.