I gotta say, this was impressively creepy - sure, the platforming physics were a bit jank, but that helped sell the "bootleg cartridge" feeling in hindsight, and the general atmosphere was top-fucking-notch.
Seeing the game start at the first "real" section caught me off-guard, too - it was probably just a simple autosave in hindsight, but it helped give the feeling there is SOMETHING in there.
Welcome to Newgrounds, you're gonna fit right in.