Note: This game is also titled Pocket Monsters Pearl.

National Dex
Defeat the Elite Four to get the National Dex from Professor Oak. Alternately, successfully complete your Sinnoh Pokedex by seeing all 150 Sinnoh region Pokemon. Note: They do not have to be captured. Then, go to Professor Rowan’s lab and talk to him. Prof Oak will dash in and upgrade it.

Pal Park
Get the National Dex to access Pal Park on Route 221.

Agunomu
Go to Aspiration Lake to catch Agunomu.

Ambipom
Aipom will evolve into Ambipom when it levels up and knows the move Double Hit. Aipom learns Double Hit at level 32. (more…)