The Pokémon TCG hides Haunter in the background art of 2 cards. The cameos sit across 2023–2024, with Mousho responsible for several of them.
These cameos cluster in Temporal Forces most heavily; Mousho accounts for 1 of the appearances.
These cards feature floating, urban alley, ghostly and mischievous expression in their background art, illustrated by artists like Mousho.
Haunter appears as a background cameo across 2 Pokémon cards.
These appearances range from clear sightings to barely-visible silhouettes, scattered across 2023–2024 of the TCG.
Each cameo rewards collectors who pause to look closely at the card art.