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