Ah I get it. I think the UI flow could be improved when setting it up.
I recommend "Play" as a menu option, and when that's clicked all the right hand side options are shown. Then at the bottom below the options put the "Practice" or "Begin Waves" button (depending on what they selected).
I was having trouble finding the fun when playing. There's no indication when an enemy is about to attack, so it's unclear when to block or dodge. The moves don't seem to flow very well between each other, I would like a clear way to do combos. I guess there's more strong attack stuff I didn't bother to learn, so maybe it's laziness on my part.
I like the gameplay element of the orb, I think that makes for fun gameplay. But I need the camera to be able to be rotated faster so I can keep an eye on the orb. Looking forward to see where things go! Better animations will bring it to life IMO.