After playing that game for the first time last year... I do not see where the enjoyment comes from. Everything about that game was ass. Most of the missions were either really boring or just really frustrating. Better than 06 though, but not by much.
Anyways for glitches I've encountered, there was one when I booted up Pokemon Blue in recent years (despite knowing that the save battery has long died). I select New Game and Professor Oak appears... then suddenly the graphics glitch up a bit and the game freezes while it plays a bunch of random Pokemon cries and then proceeds to play a distorted "music" (the game data is really corrupted). It was really unsettling but kind of cool.