treecko it evolve into grovile which evolves into sceptile
The best starter Pokemon in Emerald/Ruby/Sapphire is Torchic. If you level it up well, it'll sail you through the first 3 gyms with ease.
Greninja is not in Pokemon Emerald. It was first introduced in X and Y, which came out after Emerald.
Ditto.
rayquaza
the first island in emerald is battle frontier
Pokemon snap or Pokemon emerald
you evolve a duskull at lvl 37 one of the best ghost Pokemon on emerald
torchic
yes he is probably the best pokemon in pokemon emerald
the best Pokemon region is hoenn { ruby,Sapphire,emerald }
in emerald its torchick
rayquaza and mew!