No longer the Blue Blur. [SONIC.EXE]

TW: Detailed gore descriptions, mention of blood/exposure of organs. Read at your own risk.

Imagine a amazing place, filled with colorful grass and a relaxing nature, giving anyone a nice amount of fun and tranquility. Inside it, lives a blue hedgehog, the blue blur, the fastest thing alive. But.. what if all of a sudden, this world of fantasies meets a horrible fate..?

NOTE: This story is divided into ACTs. ACT 1 includes 3 stages.
And, of course, this is a story about Sonic.EXE. A horrible creepypasta that ended up popular years ago.