I am not exactly sure why the "experimenters" were inspired to use a Pokemon character creator intended for use with Play-Doh to make appetizers, but the important point is that they did it, and now we have very useful, well illustrated information about how to make Pikachu appetizers.
Instead of using Play Doh, they sent various cheese through the toy's extruder, which molds it into the shape of Pokemon. From their experiment, they determined that thinner, softer cheeses like Brie work as the best medium. However, very soft, sticky cheeses end up sticking to the mold and become deformed upon extraction.
As an addendum to the original experiment, instant mashed potatoes were used and the subsequent forms were deep fried, successfully creating Pikachu-shaped tater tots.














