Surprisingly Good, Cheap Shock
Okay, so this is another spoof of the infamous creepy "Tails Doll" from one of the Sonic games. This one melds a creepy atmosphere and a good soundtrack with an interesting effect that made me do a double-take. Despite the simplicity of the approach and crudity of the design, props go to the presentation.
So this is essentially a brief scare, with the unnerving realization that the Tails Doll has come to life. That's it, that's the plot.
The flash cartoon wins because it knows its audience at Newgrounds. It uses a modified window that matches Newgrounds' color scheme, so when the creature moves forward, it appears to extend beyond the natural boundary. I haven't heard anybody at Newgrounds doing this as part of immersing the audience, so give props. The static effects, choice of soundtrack, and overall grimness elevate a standard Sonic-themed spoof to something far beyond the sum of its parts. The paws extending beyond the boundary of the screen made me do a double-take, so it was well thought-out.
Hopefully more authors inspired by Sonic or the horror genre will take cues from this minor masterpiece and attempt to achieve thrills with a little bit of imagination and stage magic. There isn't much else to this, but it hearkened me back to the good old days when Flash cartoons were inherently simple.