New demo version is now live and here is what you are going to see in it in addition to some bug fixes.
After some of your responses about the energy indication, I decided to improve it so the gun and the shield bars became separate identities and got larger size. Now the energy flow is perfectly visible. This indication occupies much more space now, but I think it's worth it.
Playing around the controls brought me to the conclusion that I have to change combo-blast controls from up + jump to primary shot + secondary shot, and assign jump to stick buttons for gamepads (right stick button when it's assigned to aim or left stick button when it's assigned to aim instead).
Due to request from someone, who can't play using mouse, I had to duplicate mouse controls on the keyboard. Primary shot now also can be used by pressing z or left arrow, shield - by pressing x or down arrow and secondary shot - by pressing c or right arrow. Because of this I had to move craft binding to r key and interact to f key.