i would say this is just regular old inspect element... i saw lots of people fake screenshots like this to sell exploitmethods...
but they were never able to show a gif refreshing the balance!
edit just typed the url:
https://satoshimines.com/play/11d7f8c7179984908f4a2ed0b0f596e9b5380aa3/#DONT_SHARE_URLthe game from screenshot is still open.
also, when u got more than 1000 bits, it displays like 1,000 and 1,000,0000 ...