Here is the full list of all 38 Monster Monpiece achievements.
50 successful First Crush ♡ rubs!
Won 100 offline battles!
Got 100 kinds of cards!
Tokio area cleared!
Okinava area cleared!
Your Rub P stock has exceeded 10000!
Fukuruko area cleared!
Won 70 offline battles!
Triggered extreme love 20 times!
Ki Outo area cleared!
Won 50 offline battles!
Ho Kaido area cleared!
Hollowlo area cleared!
Won 30 offline battles!
Ginuma area cleared!
10 successful First Crush ♡ rubs!
Triggered extreme love!
First successful First Crush ♡ rub!
Performed First Crush ♡ rub!
Won 10 offline battles!
Performed fusion for first time!
Kunaguva area cleared!
Trained for the first time!
Won a card battle with 0 damage!
Acquired a card for first time!
Won a card battle for the first time!
Attacked castle for first time!
Battled for the first time!
Started the game for the first time!
Obtained all the achievements!
Si Ku Ork area cleared!
Got 500 kinds of cards!
100 successful First Crush ♡ rubs!
Irresistible Force
Triggered extreme love 50 times!
Cleared the game!
Triggered extreme love 100 times!
300 successful First Crush ♡ rubs!