Any age. It is all age appropriate.
I would say 6 and up
While there are a couple jokes in text form on the screen that adults will be able to see a deeper meaning to (and even those were very tame), there's nothing that is inappropriate for kids of any age from what I remember. I'd expect a G or PG rating if it were a movie. Plus it's super colorful and imaginative! It can get kind of loud sometimes, and it's can be kind of wild visually. So while there's no inappropriate content I'd say a kid 6 or older would probably appreciate it more than a pre-k aged one.
Depends on your kids. I think mine could've gone and been totally into it as young as 2.
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