I think the reason it hasn't helped anyone enough is because it's incomplete.

Keep going.

Has this guide actually helped anyone?
If not, I won't bother to continue writing this.

As davedes said, your code is not eyes friendly and no one bother to rubber duck it. But at glance I can see your SpriteBatch draws only ONE texture.

- Spam TextureRegion/Sprite/Image, Texture is expensive
- All you need to is Animation class. There is tutorial of it on users wiki

Trivia: I don't like debate between lwjgl or libgdx for newbie. My answer is always same: Java2D. Why? because it teaches, forces you to understand how basic game working by looping, acting, rendering, etc. Soon after you mastered Java2D you can use other frameworks easily. You just read/skim the source code and you understand what's going on, what its place in Java2D world.

When you add button to stage, the stage will handle the render and act simply by doing addActor(). It's recommended  to use stage for messing with scene2d and table.

If all he needs is rectangle collision, box2d is clearly overkill.

As indie game developers we are unable to distribute in physical form.

We're getting slightly offtopic here... but... backups!

To me, living in New Zealand, where we still can only download a certain # of Gbs per month, physical distribution is still key. As much as I'd like to be able to download as much as I wanted, I can't. We, as a household of 3(inc. servers), can only use 100GBs per month. Now, if I had to download ALL of my games again(e.g, if my hard disk failed), I'd have to wait 3-4 months without any form of internet before all my games were playable again.

Yes, getting unlimited internet in New Zealand is possible. But when you read the fine print(if you can even afford these plans in the first place), it will mention something along the lines of you being on a "lower priority".

Now if you want to tell me that physical distro. is too old fashioned, remember that living those living in non-european/american areas.. exist?

Yeah sorry, that class is a bit outdated i need to change those stuff.

How do i mess with cameras?
I researched in wiki, but its kinda complicated , i never kinda understood it, even in that Java Game Killer Programming book..

What does a camera means?

Please, if you help me fix it, i will give you one ZILLION DOLLARSSS or Reais actually.. jking

Anyway, i beg for this forum help

Online distribution is getting cheaper every day, and has been cheaper than hardware distribution (including shipping, and the profit for the retailer) for years now.

What are the advantages of these disks anyway? A sense of ownership? Don't think so, they can still disable your license remotely.