This was a really charming game that really hits everything for me! Very cute music and graphics, nice story and concept, solid, smooth and intuitive gameplay with varied and challenging mechanics, and to top it all off, it's educational! I think my only complaint was that there was a bit of a boring middle part, where you have already seen everything the game has to offer and the difficulty isn't ramping up anymore, but you haven't saved enough people to see that you're making meaningful progress. Because of this, I was tempted to end the game since I thought it was just going to loop forever without any more progress. However, I did eventually get a big boost of lives saved which drew my attention to the top-right bar making significant progress, which bolstered me to make it to the end. Nice work!