This game is going Free to play, it probably already has by the time you read this.
The review is correct, it's pretty janky controls esp. for the flying.

Don't let the cute veneer fool you, this game gets very difficult.
The game is a mix of action levels or puzzle levels or both.
The action ones are a matter of timing control and dashing and blocking skills, simple enough.
The puzzles ones are a matter of building blocks, diverting enemies and occasionally using powers to get past obstacles.

Technically the game has 210 levels, but I ignore the first 10 in the count since they are tutorial levels, to teach you the skills you will need to complete the game.