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"Pokémon Channel" was developed by Nintendo subsidiary Ambrella and published by Nintendo and The Pokémon Company. It was created both to serve as a spiritual successor to "Hey You, Pikachu!"—a similar digital pet-type game wherein the player plays with a Pikachu—and to promote the Nintendo e-Reader peripheral device. The game included three e-Reader-compatible cards, but not the e-Reader device itself. When scanned, the cards upload new templates for the player to paint and for Smeargle to critique.