Honestly, the one thing that genuinely bothered me was that the dialogue's "glitch" effect made it wayyy too hard to understand what my guy was saying. It got hard to play the games without hearing the rules, and even to get scared when I just didn't hear the dialogue that should unnerve me. Some subtitles or less glitched filtering would have been really nice.
Besides that, I really liked the name and the design for our little buddy, the perfect mix of "genuinely something kids could play with" and "oh, something's wrong here". The gameplay in the first game was great, at the same time providing a fun challenge and characterizing our little buddy as controlling, untrustworty, and willing to cheat to make things go his way. For the same reason, I really liked the last game with the questions, and the "choices" between "yes" and "yes". Genuinely fun to play, interesting characterization.
That said- although it's just a personal opinion, and maybe the dialogue I couldn't hear helped with that- I found the "scary images" in the middle two games and some jumpscares to be a little gratuitous and out of nowhere. "The character in the game is real and wants out" is fun, but it seemed bland for that to just lead to spamming creepy pictures. The ending was still good, but I felt like it could have been more interesting to lean into the "do what I say" aspect with more questions in the last game, slowly going from "questions" to "just outright commands" and leading to the climax like that- maybe he forces you to help him escape the game, or maybe he tries to force you into something and attacks you when you disobey. Again, just my two cents.
Overall, very fun game, and usually I'm not even that into analog horror.