Thank your for playing the game and sharing your experience. Yes there's still a lot of details to polish in the UI. Yes you shot with the space bar, the sword icon gives you bullets that you can shot whenever you like and it shows you that on the UI, but after reading you comments it seems like that's information is passing unnoticed to the player, so that's another issue to solve on the UI department. The championship mode is still unavailable hope to have a preview soon. This is still a Work In Progress, so there are missing and unfinished features. I understand for many players music is very important aspect of the game however sadly that is scheduled ad the last step on the development process, so most likely it won't change until very close to the release date. I do appreciate very much your comments, and will take them into account. Please stay tuned for the next update, hope to hear from you then.