So far, this is my favorite LD42 game I've played, it's fun and has a unique and appropriate use of the theme. I recommend continuing development on this. You explored a lot of possibilities here in your level design (and in just 72 hours!), things like platforming obstacles, requiring children to be saved in a specific order, racing to avoid getting squashed, all of these can be taken much further.
My only complaint is that the beginner learning phase is pretty rushed and there's enough uncommon platforming mechanics here to trip me up by forcing me to use them all together almost right away