Poppy Playtime's Pianosaurus had such promise, proving to be quite terrifying when Mob Entertainment teased him before the release of Chapter 4. However, as soon as you set foot in Safe Haven and watch the story unfold, it soon becomes clear that Pianosaurus is no threat at all. So, while I'm disappointed we didn't get more from him, there's still plenty for you to learn about him. So, let's dive into his personality, history, role in the story, and more.
Of course, before you can play Poppy Playtime Chapter 4, you need to get through Poppy Playtime Chapter 1, Poppy Playtime Chapter 2, and Poppy Playtime Chapter 3, each more terrifying than the last. Honestly, we didn't think things could be any worse than what we encountered in PlayCare, but we were wrong.
Who is Poppy Playtime's Pianosaurus?
Poppy Playtime's Pianosaurus is one of the many toys Playtime Co. created, going on to become the product of an experiment, Experiment 1163, to be exact. The Bigger Buddies version was created in 1990, but Harley Sawyer wasn't a fan of this one, deeming it a failure and reassigning it to 'testing.' The fact it's a failure is a shame to me, as the idea of a musical-based toy being a big bad was intriguing, but it wasn't meant to be.
We don't know much about the Bigger Bodies variant as his Safe Haven appearance is minimal (more on that in a minute), and we don't even know what human became Pianosaurus. Presumably, it was one of the children who lived in PlayCare, like Poppy Playtime's Mommy Long Legs and Chapter 4's more prominent villain, Poppy Playtime's Yarnaby.
In case the name doesn't make it obvious, Pianosaurus is a dinosaur mixed with the popular classical instrument. His appearance also shows this off, as he has piano keys for teeth, resulting in a smile so intimidating you can't even convince me that he looks friendly in the artwork designed by Playtime Co. Whoever signed off on this design either didn't care or thought it would be funny to release an eerie looking musical toy.
Mob Entertainment showed off Pianosaurus in a small 45-second clip on X, giving you a glimpse at the Playtime Co. trailer for the toy before the Bigger Bodies version of him appears behind the computer. However, many fans had been waiting for this official reveal for a while after discovering Mob Entertainment had made a trademark for 'Pianosaurus.' Plus, it's the first to appear in the Chapter 4 Icepick ARG experience.

What is Pianosaurus' role in the story?
As Poppy Playtime Chapter 4 is still quite new, we're going to slap a spoiler warning here. You still want to know what happens? Okay, here we go.
Anticlimactic. That, in a word, is how to best describe the appearance of Poppy Playtime's Pianosaurus in Chapter 4. This toy is alive for precisely 22 seconds (seriously, time it). You meet Pianosaurus when you fall into his pit, but before he can attack you, Poppy Playtime's Doey turns the dino into his next meal. No, I'm not kidding. Doey eats Pianosaurus in the dark, throwing his head your way.
That's it. That is all there is to Pianosaurus' role in the story. He barely qualifies as a minor antagonist, but he was certainly good enough to be Doey's lunch. I had such high hopes for Pianosaurus, firmly believing he would provide us with a chase sequence, but alas.
Poppy Playtime Pianosaurus' personality
As we know so little about Pianosaurus, it's hard to nail down his personality. However, we'd wager that before the horrid experiments, the toy was happy, using music to cheer people up and bring some joy to the world. These days, though, Pianosaurus was a bone-chilling killing machine until Doey gave him a taste of his own medicine.
Poppy Playtime Pianosaurus appearances
Poppy Playtime's Pianosaurus doesn't appear in the previous chapters, meaning his debut is in Safe Haven alongside Yarnaby and the Poppy Playtime Nightmare Critters. Given what happens to Pianosaurus, we're not likely to see him again, unless it turns out that there's a second one wandering about.
That's everything we can tell you about Poppy Playtime's Pianosaurus. To learn more about other characters that are likely to appear in Chapter 4, check out our Poppy Playtime Poppy, Poppy Playtime Kissy Missy, and Poppy Playtime Ollie guides.