required for 100% the game

by region

Phenac

• Colosseum - Lvl. 30s
• 5/5 TM acquired
• Defeat Gym Leader Justy

Pyrite

• Colosseum - Lvl. 40s
• 5/5 TM acquired

The Under

• Colosseum - Lvl. 50s
• 5/5 TM acquired

Shady Outpost Guy

• Knock out all others before trying to capture Shadow
• He will appear something like 47/48 shadow Pokémon caught
• Important to do this first post-game cause bro can despawn