Just wanted to report a Glitch I found. If you go through Alph Ruins and finally reach the spot where you can find Unown... well, theres a ladder there, just like in the original Pokemon Crystal.
If you use this ladder, you end stuck in a tree.
Check the attachments if you dont know which ladder I mean.
edit: You cant get out of there anyway. The only way out would be the ladder or an Escape Rope, as far as I know.