Glitch: Minor
Okay, this is pretty much VERY minor because I doubt it'l happen to alot of people, but its exploitable.
After going through Dragons Den, I got to the end and picked up the Dragon Fang. Now, by absolute dumb luck, I had a full bag, so I wasnt able to pick it up, but the script continued any way as if I picked it up, got the badge and the reward TM. Now, after dropping an item I no longer needed, I proceeded to pick up the Dragon Fang, once picked up, the same script happend but the character did not appear, I was talking to a ghost and getting the badge again and ANOTHER Dragonbreath TM.
Just figured I'd say just incase you wanted to do anything about it.