You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
Breeding Abilities Natures Fixed all those glitches Massive rebalancing 3 new types Mega Evolution Over 500 new Pokemon 3D graphics Tons of new moves ... and that's just off the top of my head. There have been literally hundreds of other more subtle refinements, and I guarantee I'm forgetting some major things.
Double battles Triple battles Rotation battles Sky Battles Pokemon Contests in gen 3/4, and other such things in other gens Customizable trainers Online play
On 12/02/12 I said I wouldn't change this until something impossible happened. Now, Earthbound just got re-released in the US.