So, tried 1.2 and I noticed some things. I think that yellow bar at the bottom is the energy indicator, but even that took me awhile to puzzle. So, putting a little lightning bolt indicator around it (you could put one on each side if you care about symmetry).
The item inventory system is an improvement, but it seems out of place. To the top right of all the indicators at the bottom is an open slot for you to put it. You'd have to make it sideways, but it'd work (you might be worried about confusion... I wouldn't... scroll up = left seems the most natural thing).
After checking the aliens... I happened to realiz that the health sign is still there but the health isn't next to it... I'd just make it your symbol again, if that's possible or put ur kill count in it... just have it make sense.