Flclnoodles

someone just replied to ur answer 1 day above urs :P u can still get the hat but really loosing to him..hes got lvl 11 pikachu lvl 9 pidgeotto lvl 10 butterfree ^^ Oh thanks and yeahhh I felt so dumb because I didn't think he would battle me and I only had a lvl 5 Nidoran M and a lvl 9 Pikachu haha

He should be in the most bottom left of the Viridian Forest!

What happens if you lose to Ash in Viridian Forest? Are you not able to get the hat anymore? lol