Pocket Worm by Sebastian Mihai is a PocketStation homebrew game inspired by Nibbles. The goal is to guide the worm and eat the 30 pieces of food appearing randomly on the screen. As the worm eats food, it grows and speeds up.

http://sebastianmihai.com/main.php?t=114&n=PocketStation-development-Pocket-Worm

This is a little Shoot’em up game made for the Pocketstation.

http://onorisoft.info/ps.htm