Pop, to two decimal places
Websites like Cool Math Games (though rarely hosting Isaac), Unblocked Games 66 , 77 , or 999 use proxy techniques. They re-route the game traffic through different IP addresses so the school firewall sees the site as "Google Translate" or "Wikipedia" instead of a gaming server.
"Leo," she repeated. Her voice sounded wrong. It was wet, guttural. The Binding Of Isaac Unblocked Games