Had a fun time platforming! I can see the One-Way-Platforms were inspired by Super Mario Maker, which it's always cool to see references to games! I'm not a fan of SHIFT+ SPACE to high jump; I feel it'd work better to make high jumping the default, as there's no reason not to high jump, since you can just press SPACE lighter if you want a shorter jump. The game at times feels like a clever Mario Maker level, and that's a good thing! I especially like the obstacle where you hit a button in the middle of a spinning blade zone!

The resolution does not fit the web page. Also space + shift seems not to be working so I can't get past the tutorial. Some spelling mistaktes.
Good: I love the idea and the cutscene is very cute!