Such a nice a chill game to play! the music, art and gameplay fits together quite nicely. The mechanics and puzzle are quite simple to understand! Though I can't get past level 6😅. The game has a nice introduction to how the puzzle works and it's very accessible. The level select button is a really neat feature allowing you to check out other levels even though you're stuck on a lower level.
One thing I found that might cause an issue is that if you set the speed to instant and you have a large number of frogs on screen, if you set the speed any lower then the game will take a long time to move the frogs. It also caused a little bit of lag on my end, but that's only if you have like over 100 frogs active or something.