Some more bugs, in Battle Frontier:
3. Thunder shock's adjacency damage doesn't break Illusion.
4. Battle Frontier music sometimes doesn't loop correctly?
5. The opposing pokemon sometimes show the wrong level. Hovering over it shows a different level on the card, presumably the correct one.
6. Sometimes when initially choosing the pokemon move to use during a battle, both move options show up darkened.
7. I somehow caused the pokemon and move selection/auto-battle/pre-battle/start battle/shop/items/quit game menu to become out-of-sync, where the fading in-and-out rectangle became one unit to the right of the actual selected option. It's probably related to the item selection screen, since when I went back to the item selection screen and back out, the display fixed itself.