Are pokemon people or are they animals? Sparks seemed more like the latter, until 'hearing' his speech in the memory shown to them by Hush, Hush who himself fit into the former as far as they could see. It reminds them of the dogs in Snowdin - mostly the mecha-Pomeranian.

"So they are, in effect, treated as pets?" The word is bright and brittle in tone as they more fully face the other - the thought of rematch falling somewhat to the wayside under this new information that sets old information in a different context. They battle with Pokemon. "Don't tell me - they want to do it, do they?"

Treating people as animals, as pets or playthings or weapons - there's nothing so despicable to Chara. The fact that apparently it's an institution aggravates a great deal. This combined with the pokeball... accurate reassurance might be needed.

"Not under your command, no."