This plush can be hung up by the string on his top spike. He's an SA1 era doll, but kind of unusual in that he is posed. Look at his bent elbow for 'hand on hip' look. That thumb is even curled inwards. The other hand has a 'thumbs up' thumb. The expression is a little odd, but SA1 era items did tend to really lean on the "BDG" (big dumb grin, where Sonic had bent / horizontal teeth)