They found it in the back of an abandoned arcade, wedged between cracked flyers and a stack of yellowed strategy guides: a cheap, paint-chipped Android tablet whose cracked glass still glowed with a pulsing thumbnail — a pixelated Sonic with black eyes, grinning too wide. The file name was blunt and final: sonicexe_round2.apk. The tag read GameJolt, and the title beneath it, in one of those hurried, teenage fonts: Sonic.exe — Spirits of Hell: Round 2.