During elementary school, I used to play a certain online game related to a teddy bear. From what I remember, the story was about a teddy bear plushie falling out of a car. Wanting to go back to it's family, it goes through various stages back to them.
It's mainly a platformer, with different levels like a forest stage and an underground stage. I also remember the final stage involving a bird that would grab the bear and help fly it to the end, where the bear would reunite with the family. The art style was simplistic yet clean and colorful, and the controls were fine although I do remember it having the issue of a moving platform not moving you along with it.
It's a game I have wanted to play for the longest time, yet every time I try to find it, I can't find any sort of game like it. There is a small possibility the plush could of been a dog instead? But I mainly remember it as a bear.