Pocket Monsters Emerald

Every time you encounter a pokemon you have a 1/8192 chance of the pokemon being a different color, this is called a shiny pokemon

There are certain pokemon that can only be caught when you trigger certain events, like castform.

If a poke'mon in your party has suction cups/sticky hold as an ability, then you will have an easier time fishing for wild poke'mon.

The Pokemon ability Swarm has 2 effects. It raises Bug-type attacks by 150% when the user is weak, and, new to Emerald, it makes pokemon cry in the background more often. For example, in caves outside of battle, you will hear a Pokemon screech more often.

If you have a poke'mon with synchronize as an ability, you will encounter more poke'mon with the same nature as the poke'mon with sychronize. Note that the poke'mon with this ability must be in the front of your party.

As you accomplish more along your journey, your Trainer Card will change colors and rise in rank, depending on completing certain tasks. After completing one task, it will rise in one rank, but there are some tasks that cannot be completed until beating the Elite Four. You must do these tasks:

-Become Pokemon league Champion
-Complete the Hoenn Pokedex
-Collect all the gold symbols in the Battle Frontier
-Win one ribbon in all five of the Master Rank Pokemon Contests.