Many reviews are comparing The Smurfs Mission Vileaf to Super Mario Sunshine, and that was reason enough for me to play it. The similarities are apparent but the game definitely has its own personality and universe.
And no worries, this little review will be smurf jokes-free, I smurf it ! (Beyond this point)

If you're going to take inspiration from something, you might as well take it from the best. Sunshine was a fantastic game and the Smurfs does a good job replicating what made it so fun.
Instead of the Mario universe, you'll roam around the Smurf Village that serves as a hub, and links the different worlds together. Traverse the expected forest, swamp and Gargamel's castle while cleaning the corruption in a game that looks charming and feels nice to play. Platforming with Flu-... I mean, with the Smurfizer and ridding the flora of Gargamel's latest nefarious scheme is satisfying, as is looking for the many collectibles hidden everywhere, especially once you come back with a few upgrades.
The adventure, on the easy side, will take between 5 and 6 hours to complete. Twice as many if you're looking to find all the secrets, which will clearly be the biggest challenge.

Only the last few levels can get tricky in some spots, and the upgrades, acquired by spending collectibles, are unlocked way too late to be used in a casual playthrough, but this short bucolic escapade feels complete, and enjoyable all the way through.
If you like the universe, or can look past the obviously childish tone that comes with it, you'll have a good time with The Smurfs Mission Vileaf. It's not good old Sunshine, but it's absolutely competent.

Needless to say, it's a game that will look even better to a younger audience, while pleasing everyone with fun gameplay and secrets.
I'll give it a 7, because as I was wandering through the village, several smurfs waved at me and asked how I was doing, which was unexpected and made the place feel even more lively. It was nice.

I got my first Smurf figure as a prize for a reading-contest at school and I've been a fan ever since! Now 50 years later I'm happy to play this lovely game to refresh my memories... sigh... I love the Smurfs! Great platformer!