Quite a large Sonic plush!
This doll is modern, large, and rather floppy. You can tell how big it is in the first photo, as he is shown holding a regular size CD case, and there's a plate with game case art beside him. (Larger than regular game case size). The pattern for him seems pretty good, and he is likely to be a prize doll of some kind. The ears do stand up, the hands are flat but pretty big & the shoes are nicely stuffed/normal looking. His expression is ok, but there's an odd 'brow ridge' noodle thing going on. The spikes are a little small (for Modern Sonic), but they're in the right spot. This is a Sonic X labeled plush made by GOSH.