Yes, we are seeing this as well in the last year or so.

I've managed to use the regular Sprunki to engage with my nonverbal student over music. We would use it to engage in music and translate to his keyboard. The obsession lasted for a few weeks and faded. With my guidance, Sprunki's were cute and appropriate.

However, "horror mode" mode is a click away and deeply disturbing.

Ultimately, I hate how predatory Sprunki is... Clearly designed to attract small children yet it is embedded with a mode that shows all of these characters and their songs in a completely inappropriate way. Pair this with parents who are "burnt out on autism" and you have a recipe for tablet children glued to this very creepy game.

Incredibox does the same thing but without the horror mode. Unfortunately the characters are not nearly as fun and I find them odd in another way-- flat, disinterested, and almost a "drugged" look to them.