I like that your menus are so well fleshed out, they look good and convey a lot of information. I felt that attacking was alittle sluggish, increasing the animation speed might help with that. Also, try seeing if you can play with the gravity to help the jumps feel less floaty. You can do this fairly easy if you are using a rigidbody2D component on your character controller. Doing this will cause you to have to increase your jumping force, but it should feel pretty good to play. I love the boss rush concept you have here. Good job.