Thanks for the feedback, and glad you liked it!
I'm glad you could figure it out eventually even though it wasn't clear at first. I really wanted to have more dialogue to explain what you were doing in each of the three levels, but had to cut that for time.
I'll add changing the attack input to my post jam list, and I'll try to look into adjusting the way speed works a little more. I did it like, 3 different ways before I finally settled on one, but I think I can figure out for a way to let you make tiny movements. I think having a pause menu with "restart level" would be a good addition as well.