Very cute world and I love the visual style. However, I have two major issues with it. First, the level design can be a bit confusing at times. All the different challenges are very close to each other, which makes the world feel cozy and convenient, however, it can be hard sometimes to tell where you're supposed to go.
Which leads to my next point, which is that the level is very busy and crowded with moving components. This is mainly tricky because it helps in making it hard to tell where you're supposed to go. A platform might be coming towards you but be just out of your reach, but it leads to another part of the level, so you don't know if you're doing something wrong or if you're just not supposed to go that way. When you first reach certain checkpoints, more platforms will spawn so that if you fall off, you can ride back up, as all checkpoints override each other no matter what progress you've made. However, the level design can be so busy at times that when the camera flash-moved to a different part of the screen to show off the new platform, I had no idea what was going on. I thought it was a glitch the first few times before I triggered it in an area that was less busy. I think the confusion may come because there's next to no text in this game. A simple "a new platform arrived" ping would've been very helpful. I'm all for games throwing the player in with no instruction, but in some cases, a little guide is necessary.
I also felt like the controls were a bit wonky, but because I don't have a lot of experience with 3D platformers, I'm not sure how close to 'normal' they were.
But overall, tricky, but not too tricky, and just quite confusing at times. Finished with 13/15 stars.