Great job! There's a lot of things I liked about this. The switch mechanic was great, both for its fulfillment of the theme, mode, but also as a creative and fun way to make the levels interesting and challenging. I also love the character design of the protagonist and I love the speed at which he runs. I feel like many platformers have slower movement where you aim for precision jumps and careful movements, but in this game you can let loose and sprint through which was quite exciting. Nice work!