The idea of swapping between the characters in time was definitely a great take on the theme. However I feel like standing in place at times felt odd. With a little tweaking of the mechanic I think it could work well.
I experienced some audio glitches here and there where parts of the music would become desynced with each other. I'm not sure how that could of happened unless you were using some kind of middleware but I think it's worth looking into.
Good work overall!