A Cartridge is an item in Chibi-Robo!: Park Patrol. It allows Chibi-Robo to use a Park Project. Initially, Chet had all of the Cartridges, but he lost them all. Because of that, the cartridges must be found and placed in the Reader.
- The cartridges resemble differently-colored Famicom cartridges, as the Reader resembles a Famicom.