Here is the full list of all 14 Pedro Land DX achievements.
Reclaim the ancient spire and clear Taco Tower!
Defeat the Chupacabra King and clear Pedro Land!
Beat the Pedro Land Boss Rush!
Defeat Gobby the Color Thief and clear Spicy Salsa!
Get the bad ending in Pedro Land 2.
Get the good ending in Pedro Land 2!
Beat the Pedro Land 2 Boss Rush!
Defeat the Eastern Army and clear Pedro Land 3!
Beat the Pedro Land 3 Boss Rush!
Unmask Mr. Wicked and clear Wicked Tower!