Thank you everyone for your comments, I'm sorry you had a lot of trouble because of the difficulty, I tried to make this one easier than my last entry but It seems that I failed in that regard.
I wanted to respond to some particular feedback by @Batheo3000 and @Junber that resumed the overall feeling with the game.
"The game is way too harsh"
As I developed the game I thought it wasn't too hard but the thing when you develop this kind of games is that because you're testing it you become better at it so it's hard to measure it's difficulty, I'm sorry about this I will try to make something more easier next time. If anyone is having too much trouble with this try to just use the beam in lower bursts than have it all the time.
"Why would you have to reset to the start of the game?"
As this is a small game I wanted to do things that you can't do on other games, like carry on these things. If I would have used the normal philosophy of design I would have removed the timer, and make a finite amount of energy for each level (as @gwinnell noted and it was considered when I was making this), but it would have make this even more generic and it would have removed something that made it different of the norm, it would become just another "hard platformer" without any interesting ideas. It appears that mixing these concepts with the controls was a bad idea so... I'm sorry about that.
"The controls are way too frustratung and inconsistent"
It comes to experimenting with new ways to control things. Some like it and others don't. I still need more experience to get the right balance, so... again, I'm sorry.
"Combat was hard by its very nature and giving all the enemies (except for the long-ish ones) a lot of HP didn’t help."
I wanted to discourage killing the enemies as a safe way to win, if the enemies had smaller hp they would be dead in a breeze, but I wanted that you kill some select ones and the others are just for you to decide if it would be wise to kill them and advance or losing more time trying to clear the stage without killing them.
"Clicking outside the window"
...I'm really sorry.
I think that's all the negative points that people brought up. I'm really thankful for all of the comments and for your views on this game. For the positive points, I'm really happy if you enjoyed this game or if you found something good that you could enjoy, Thank you everyone for taking your time to play this and even more thanks to each of you that comment giving me your thoughts.
TL;DR: Game is too difficult because I wanted to experiment with mechanics, I'm thankful to you for taking your time to play/comment. (I should put another I'm sorry here, but it's getting old...)