Get a free bonus when buying Poke Balls in bulk.

Receive some goodies from Professor Birch.

Save the life of the woman near Petalburg Woods.

Earn the Stone badge.

Obtain a Pokedex.

Catch a Kingmadio. Have Fun.

Deal the final blow to Zabulon's team with Baltoy.

Catch a Pokemon.

Obtain a Pokemon.

Don't let Haruko's Kingmadio use struggle. (Dewford Gym)

Create an advantage of 12 levels between stats in 2 stats against any enemy.

Catch Roclobster (Because if you don't you literally can't finish the game :D).

Earn the balance badge.

Defeat something inside Solar Caverns.

Earn the Miasma badge.

Catch Voltorb, Beldum, Shuckle, Cinderco and Chikorita.

Become a detective and solve the case in New Mauville.

Walk 5,000 steps in one session. (No Running, Air Treks, or Vespa)

Press the A Button 1,000 times in one session.

Starting from bootup, receive some goodies from Birch without letting go of the A button. (Don't hold the button until after re

Obtain Dragoone, Gigawolf, Quilshark, Sevicious, and Zangol.

Get through the whole secret hideout in the Island of Calm. (One session)

Earn the Dynamo badge.

Catch the shiny Aerodactyl in the desert.

Obtain a Yellow Vespa.

Find TM28 - Dig

Defeat someone in Meteor Falls.

Defeat someone in the Weather Institute.

Defeat Lolidragon in Mt. Pyre.

Defeat someone in Mt. Pyre.

Earn the Comet badge.

Defeat A Monster.

Defeat someone in Lilycove City.

Earn the Knight's Emblem.

Defeat someone at the top of Lilycove's Mall.

Become the new Hoenn champion.

Run away from a sea monster.

Get some teeth and then get yourself literally killed near Pacifidlog Town.

Earn the Focus Badge.

Evolve Hyperegg into all possible evolutions.

Catch every single "Madio" Pokemon. (Except Kingmadio)

Catch a Pokemon.

Catch a Pokemon.

Catch a Pokemon.

Win a drinking contest in Fallarbor Town.

Obtain a Toxicroak at the Abandoned Mines.

Rest In Peace my dude.

Get through the Super Trick Maze in Necropolis.

How is this puzzle supposed to work?

Get through the Quiz room in Necropolis.

Probably with the quality of this game. Reach the end of the story.

Pay a visit to Norman in Petalburg Gym.

Obtain a Totodile.

Obtain the Heat badge.

Catch a Spiritomb.

Obtain Meowth, Doduo, Growlithe and Blitzle.

Have one of your pets die and obtain Glute as a consolation.

Defeat leader Burke.

Defeat soldier Schwartz.

Defeat leader Kylie.

Use Rock Smash on Unbone (Gym Island), after having already defeated him near Pacifidlog.

Catch ???

Catch a Pokemon.

Win a last battle.

Catch a Pokemon.

Catch a Pokemon.

Catch a Pokemon.

Hatch a Pokemon.

Fill the Regional Pokedex... well at least as much as you can.