Unfortunately I got stuck at level one because I couldn't glide far enough to get over the spikes.
But anyway Ilike the idea, it's implemented better here than in some other games I've seen. Because I got stuck I couldn't see where you got with it in further parts of the game, but some things you did have great potential, like the changing of the game elements and the specific abilities for every age.
So overall, besides some small bugs, it looks solid and it certainly feels good to play it, and the sprites and animations are very cute. Good job!