Thank you! I might work a little more on it and make it more enjoyable.

I couldn't playtest it with enough people unfortunately so my opinion about the difficulty was somewhat biased. I thought it was actually somewhat easy since there are measures to make up for lost lives and currency. For instance the player gains a new life when successfully beating a level and one star of each kind when dying. Thanks for the input though, I'll take note of it for the next challenge too.