Upon some trial and errors, game scores can now be saved!
Apologies for anyone who lost their high-scores prior by default to "An error has occurred".
Digging into Google, I found the scoring system needed to be... Ah blablabla. It's fixed now!
I need to edit the games one at a time however, so for now there will only be 3DWorm and a few others LIVE.
Sometimes they're nice to play when MC gets boring after a while, haha.