Thank you! There are just five levels: [2, 2], [3, 2], [4, 2], [4, 3], [5, 4]. I thought about making it longer or even endless, but I decided to make it much simpler because the game is for kids and the feeling of victory is important to them. That's why there are only 5 levels and confetti at the end. Sounds are taken from
https://freesound.org.