I've found a couple bugs while I was playing this. I figured this would be the best place to mention them, since they don't show up in Moemon FireRed.
Some sprites (listed in the spoiler below) look kinda glitchy. [spoiler]Typhlosion, Totodile, Croconaw, Feraligator, Togetic, Natu, Xatu, Baltoy, and Minun[/spoiler]
(Btw, all three of these screenshots are from the same battle.)
When I tried to open their sprites in a Gen III editing program, the following error message popped up:
Images failed to decompress. Aborting sprite load.
Another glitch I found is that the game crashes every time a Baltoy enters a battle.
Hopefully this has helped you!