Here is the full list of all 12 Pid achievements.
Complete the game with all 12 secret souvenirs.
Find all the secret constellations.
Complete game on hard difficulty.
Complete the game.
Find 60 secret areas.
Collect 5 secret souvenirs.
Enter the entourage HQ.
Find 30 secret areas.
Find 10 secret areas.
Defeat the Butler Orlando.
Find a secret constellation.
Collect 1 secret souvenir.