Here is the full list of all 12 Porradaria Upgrade achievements.
Complete the MonsterDex.
Find the shortcut to the Mountain Level.
Finish the game with the Swordsman with all the Potato Chips.
See all the endings.
Finish the game with the Ninja without using any Sub-Weapons neither the Bushin no Jutsu.
Finish the Game.
Finish the game with the Ninja with all the Potato Chips.
Kill a enemy dove.
Pass right through the narrow spiky corridor in the Mountain Level (alive).
Get a Potato Chips.
Find the underground cave in the Desert Level.
Pass right through an enemy with the Bushin no Jutsu.