Background cameos let illustrators wink at the wider Pokédex. Smoochum earns 2 of those moments across 2003–2010, distributed among Ken Sugimori and Masakazu Fukuda and other contributors.
These cameos cluster in Aquapolis most heavily; Ken Sugimori accounts for 1 of the appearances.
These cards feature indoor, indeterminate, indoors and group in their background art, illustrated by artists like Ken Sugimori and Masakazu Fukuda.
Smoochum appears as a background cameo across 2 Pokémon cards.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2003–2010 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.