Sonic Exe Sonic, Satanic art, Mario characters

Can somebody explain what Sonic.exe is? My 4 year old is obsessed with this (and regular Sonic), internet says it's a game, but it's also a series? : r/SonicTheHedgehog

Sonic.exe Meaning Pop Culture by

Fun Fact: The original Sonic.exe (2011) has grey shoes instead of red : r/ SonicEXE

Sonic.EXE (You Can't Run) Render #2 by KingAngryDrake on DeviantArt

Sonic Exe the Hedgehog Cosplay

Sonic exe

Sonic.exe in a pixar-style animated movie

Sonic.exe darkest soul (android ver) by stas's ports - Play Online

Sonic Exe Plush - 14.6in Evil Sonic Stuffed Toy for Surprise Gifts (Sonic.exe)

Custom Plush Just Like Sonic Exe Cyklop Sonic Plush Inspired Plush, Funmade Unofficial Handmade to Order / 40 Cm Tall.