The UI is not very friendly to display how much energy you have available since it shows how much you have consumed and how much is being produced! I am planning some changes to make things more clear :)
Maybe getting other weapons for the main character would be cool like after the pistol when you upgrade you get a smg then an assault rifle, shotgun, sniper and the last upgrade would be a rocket launcher that does area damage. Hope you notice Senpai ;)
The UI is not very friendly to display how much energy you have available since it shows how much you have consumed and how much is being produced! I am planning some changes to make things more clear :)