(P.S. Always be cautious when accessing third-party repositories, and ensure you're not violating any terms of service or organizational policies.)
Many schools and workplaces block access to gaming websites, including Crossy Road, to minimize distractions and ensure a productive environment. However, this can be a bummer for those who want to enjoy some casual gaming during their breaks.
Crossy Road is a popular online game where you control a character that needs to cross a busy road, avoiding obstacles and vehicles. The GitHub version is an open-source implementation of the game, and "unblocked" refers to accessing the game from a school or workplace network that might have restrictions.