I've encoded the hints below using rot13 so that you (or anyone else who is stuck here) can reveal as much or as little as they want (also, thank you for naming the post this way).

Hint 1:

Gur evtvq/serrmvat gvyr jvyy cynl n xrl ebyr va gur fbyhgvba.  Vs gur cbfvgvba lbh ner gelvat gb trg gb frrzf vzcbffvoyr, ybbx sbe bgure cynprf jurer pneelvat na bowrpg ba gur punva jbhyq or hfrshy.

Hint 2:

Rirelguvat vf vzcbegnag.  Gur gbgny ahzore bs bowrpgf, gur cbfvgvbaf bs gur jnyyf, naq gur snpg gung gurer ner guerr onyyf (vapyhqvat gur bar nggnpurq ng gur fgneg) nyy znggre.

Hint 3:

Gur yriry'f anzr znl or yrnqvat lbh nfgenl.  Vs lbh ner abg cerfreivat bowrpgf, jung ryfr vf gurer gb cerfreir?

Hint 4:

Gur fbyhgvba jvyy erdhver n zbir lbh unira'g hfrq orsber.

Here is a direct reply to your question (this is a bit more direct than most of the hints, so you may not want to read it first):

Trggvat na bowrpg ba gur oyhr fjvgpu jvyy erdhver qrfgeblvat ng yrnfg bar bowrpg; trggvat gb gung gvyr jvgu na bowrpg ba gur punva vf abg cbffvoyr.

Correction: Vg vf cbffvoyr, ohg abg va n jnl gung jbhyq or hfrshy.

Hopefully this helps, let me know if you want any further information.

I can't seem to know what this level is either (just posted on the 'last level' thread).

Also, don't understand that gif at the bottom, why doesn't the ball attach? I tried to repro and it does. Is there another ball adjacent to it somewhere?