I like the video but I think you picked the wrong one? 64K?
That’s what it says in the YouTube info. It won a 64kintro competition.
(BTW it’s 64k binary size not ram)
I remember seeing quite impressive things done on the Amiga 4k intros way back when.
Wow.
Ahhh that takes me back to the old Amiga days. Thanks for sharing 
Give these guys a Gadgeteer kit and they could likely build a fully functional, accurate and animated global weather simulator. Its unbelievable that video/music is only 64k for binary and data, tip of the hat to them as that is impressive.
@ HughB - remember “geos” on C-64? GUI in 64kb 
often reading about the 64k competition but never saw the intro before.
fantastic whats possible