My first time? I heard about this game somehow, but I forget how. I'm pretty sure it involved looking up info on fangames, in the hopes of finding a good one, or at least, other people as skeptical as I was of the whole fangame subculture.
Having experienced horrible fangame after horrible fangame (it's almost always the simple play mechanics they mess up), I was naturally skeptical about this one. But I checked out the screenshots, and assumed it would just be a hack of Doom that played like Doom but featured Sonic levels.
Was I wrong or what!! I was blown away by how true this game was to the 2D Sonics in design, theme, and gameplay. The actual gameplay was GOOD! Despite being translated to the third dimension, it was still intact! Heck, most fangames can't even get 2D right, so I was quite frankly amazed by what I was experiencing.
That's my story.