Thanks for sharing, 
Babsan!
I really think you could have an awesome game on your hands.
The opinion I had about the controls still holds, but I truly believe it wouldn't take much to polish it up.
Jump cancelling when you release the jump button, having jump not bound to the up arrow (a big no-no in my books, but that's just my opinion), and a slightly more natural running animation would go a long way in the feel of the game.
I also ran into an issue where I could not jump over the boxes when the character was right up against them. I think maybe the sprite you are using for you platform behaviour is not clearing the box, while animation certainly looks like he should make it over.
I hope I'm not being too discouraging. You really have done a bang up job thus far. The small details like the shell casing ejecting is a great touch, as are the effects and the detail in the environment.
Very much appreciated for the constructive criticism. I do agree with you on the controls. As for the jump cancelling when releasing the jump button i have to look it up how to make that since am using the plattform behavior, i have been thinking on remaking the whole movement behavior with custom movement. I will fix the box issue you mentioned, i believe its has to do with the collision box in the animation frame while he is in the air.
And you are not beeing discouraging at all that is why this thread is here for.