The fangame "Sonic Gather Battle" is malware. The game executable has "requireAdministrator" set, which is completely unacceptable. If you attempt to search for "Hack" or similar keywords while the game is running, it will attempt to kill the browser. If it thinks you're trying to tamper the game, it will remotely blacklist your system, and the only way to unblacklist it is to convince the developer that you're not trying to steal his precious sprites. It exhibits a lot of other malware-like behavior, including storing a hash of your system information on a remote server, and creating a DLL file, loading it, and deleting it. More information: https://www.reddit.com/r/SonicTheHedgehog/comments/7iynxv/psa_fangame_sonic_gather_battle_has_a_malicious/ This game was previously featured in SAGE 2016. Needless to say, the developer is now banned from SAGE.