balloons enhancement to float heigher: Injecting hydrogen gus, balloon floating height is proportional to amount of hydrogen gas.

@EzerArch hydrogen is lightest gas(in reality) and Mek can produce. It is why I recommend hydrogen.
(Don't pack hydrogen gas into balloon at real world.)

I love the mockup :)

That's actually a really good idea that may not be too far fetched. Balloons are super fun to develop too. I feel like it would be possible to do this with a single entity- the hard part would be figuring out how to render a bundle like that. I'll look into it!

And since its hydrogen gas. It should explode! (For science!)

I'm not sure as to hydrogen, but I'd revamp the balloons completely.

1. There would be possible to attach more than 1 balloon.
2. The more balloons, the higher the entity/player would float.

Something like this:

(This is just retextured chickens with leads in low gravity.)

For priority reasons I'm going to close this- there's a lot of other things higher on my list than this right now. Once I can get the big features (and porting) out of the way I'll take a look at this again.