Nice game, enjoyable platformer :) I actually quite liked the story parts between the levels, however writing could be a little better (I missed commas for example), but yeah, the narration pushed me forward, so it was definetely a plus :) I almost stopped playing after second level thinking I have encountered a bug or something, but it turns out that I simply didn't know about the double jump xD
Overall the game was really nice, great job :) Keep up the good work!