I had a lot of fun playing this, and given how bad I was at it; that’s pretty impressive :D
I liked the presentation, and the conceit is so joyful :)
I think my main cause of failure was once I started to mess up I just fell apart entirely; so although you have the three-strikes to lose, after the first mistake I just made two more in a row. I think you could mitigate this by giving the player a couple of seconds of ‘invincibility’ after a failure so they can mentally reset into doing two things at once.
And yeah, as a few others said, a soundtrack would really elevate this.
But 48 hours is a short amount of time; and I had fun, so :D