I enjoyed the game so far, even if it's very basic in terms of gameplay, but sadly, I'm forced to give it a negative review due to a game breaking bug that I and some other Steam users experience and it won't allow us to progress past level 22.

More info here: https://steamcommunity.com/app/1921740/discussions/0/3481871357436177590/

I will gladly change the review score to positive if it's ever fixed.

EDIT: I will keep this review negative, because it is a gamebreaking bug that affects some users, but the only workaround I found is to install the game on Steam Deck, copy your 'savedata' folder there, beat the stage 22 on your Steam Deck and then copy the 'savedata' folder back to your PC from the Steam Deck, that allowed me to progress further and eventually 100% the game.

The game is pretty addictive, but it’s missing content and features.
Some mechanics don’t make much sense, and the current Steam Deck layout is just awkward.
If you’re a Shinchan fan, you'll enjoy the variety of characters and costumes,
but otherwise, it's probably not worth your time.